An area of research in biomechanics and gerontology concerns falls and fall-related injuries, especially for elderly people. Recent studies have focused on how individuals respond to large postural disturbances (e.g., tripping, induced slips). One question is whether subjects can be instructed to improve their recovery from such disturbances. Suppose researchers want to compare two such recovery strategies, lowering (quickly stepping down with front leg and then raising back leg over the object) and elevating (lifting front leg over the object). Subjects will have first been trained on one of these two recovery strategies, and they will be asked to apply it after they feel themselves tripping. The researchers will then induce the subject to trip while walking (but harnessed for safety) using a concealed mechanical obstacle. Suppose the following

24 subjects have agreed to participate in such a study: Females: Alisha, Alice, Betty, Martha, Audrey, Mary, Barbie, Anna

Males: Matt, Peter, Shawn, Brad, Michael, Kyle, Russ, Patrick, Bob, Kevin, Mitch, Marvin, Paul, Pedro, Roger, Sam

3.ALREADY HAVE THE ANWSER TO THIS JUST POSTING AS A REFERENCE FOR NEXT QUESTION (2 points) Let’s explore the process of random assignment to determine whether it does “work.” First, let’s focus on the sex (male vs. female) variable. Suppose we put each person’s name on a slip, put those slips in a hat and mix them up thoroughly, and then randomly draw out 12 slips for names of people to assign to the elevating strategy. What proportion of this group do you expect will be male? What proportion of the lowering strategy do you expect will be male? Do you think we will always get an 8/8 split (8 males in each treatment group)?

I'm confused as to the number of males to put in group 1 and group 2 in the applet

4A. (2 points) To repeat this random assignment a large number of times to observe the long-run behavior, we will use the Randomizing Subjects applet at http://www.rossmanchance.com/ISIapplets.html. Open the applet and press the Randomize button. State the proportion of male subjects that were assigned to Group 1 and to Group 2. What is the difference in these two proportions? NOTE: You will notice that the difference in proportions of males is shown in the dotplot in the bottom graph. In this graph, each dot represents one repetition of the random assignment process where we are recording the difference in proportions of men between the two groups.

B. (4 points) Press the Randomize button 4 more times, and report the proportion of male subjects that were assigned to Group 1 and to Group 2 for each of these pre

1.

Find the present value of $725 due in the future under each of the following conditions. Do not round intermediate calculations. Round your answers to the nearest cent.

1. 15% nominal rate, semiannual compounding, discounted back 5 years.

   $  

2. 15% nominal rate, quarterly compounding, discounted back 5 years.

   $  

3. 15% nominal rate, monthly compounding, discounted back 1 year.

   $  

2.

1. Find the present values of the following cash flow streams. The appropriate interest rate is 10%. (Hint: It is fairly easy to work this problem dealing with the individual cash flows. However, if you have a financial calculator, read the section of the manual that describes how to enter cash flows such as the ones in this problem. This will take a little time, but the investment will pay huge dividends throughout the course. Note that, when working with the calculator's cash flow register, you must enter CF₀ = 0. Note also that it is quite easy to work the problem with Excel, using procedures described in the Ch04 Tool Kit.xlsx.) Do not round intermediate calculations. Round your answers to the nearest cent.

   Year	Cash Stream A	Cash Stream B
   1	$100	$250
   2	400	400
   3	400	400
   4	400	400
   5	250	100

   Stream A: $  

   Stream B: $  

2. What is the value of each cash flow stream at a 0% interest rate? Round your answers to the nearest dollar.

   Stream A $  

   Stream B $  

3.

Find the present value of the following ordinary annuities. (Notes: If you are using a financial calculator, you can enter the known values and then press the appropriate key to find the unknown variable. Then, without clearing the TVM register, you can "override" the variable that changes by simply entering a new value for it and then pressing the key for the unknown variable to obtain the second answer. This procedure can be used in many situations, to see how changes in input variables affect the output variable. Also, note that you can leave values in the TVM register, switch to Begin Mode, press PV, and find the PV of the annuity due.) Do not round intermediate calculations. Round your answers to the nearest cent.

1. $600 per year for 10 years at 8%.

   $   

2. $300 per year for 5 years at 4%.

   $   

3. $600 per year for 5 years at 0%.

   $   

4. Now rework parts a, b, and c assuming that payments are made at the beginning of each year; that is, they are annuities due.

   Present value of $600 per year for 10 years at 8%: $   

   Present value of $300 per year for 5 years at 4%: $   

   Present value of $600 per year for 5 years at 0%: $   

QUESTION 1

1. In a keyboard event, what is the difference between typing 'a' and 'A'?

   	a	different characters are in the event
   	b	a LowerKeyEvent is sent instead of an UpperKeyEvent
   	c	a modifier indicates if the Shift key was pressed or not
   	d	upper case letters are only delivered to the focus window

QUESTION 2

1. Select all of the following which can be used to gather information for personas.

   	a	questionnaires
   	b	interviews
   	c	observation
   	d	tests of how people use the interface

QUESTION 3

1. A user wishes to purchase a book from a website. Select all of the following that are needs of the user.

   	a	the user needs to provide the address to deliver the book
   	b	the user needs to like books
   	c	the user needs to select the book
   	d	the user has a need for the book

QUESTION 4

1. A persona contains

   	a	the characteristics common to all users
   	b	the characteristics of one category of user
   	c	the characteristics of the people who will not use the system
   	d	all the characteristics of an individual

QUESTION 5

1. Which of the following are functional requirements?

   	a	the calculations the program must perform
   	b	the number of transactions per second the program can handle
   	c	the volume of data the program can handle
   	d	the exact information which must be entered into the program

QUESTION 6

1. Why are mouse move events only delivered when a mouse button is pressed?

   a		because mouse move events are started by a mouse press/release and terminated by a second mouse press/release
   b		because they use a default handler in no mouse button is pressed
   c		because they are usually only needed during drag operations
   d		because the mouse only moves when a mouse button is pressed

QUESTION 7

1. Select all of the following information should be included in a persona for a customer of an online bookstore

   	a	the customer's favourite colour
   	b	they type of car the customer drives
   	c	the type of book the customer enjoys
   	d	the amount of disposable income the customer has

QUESTION 8

1. A signal

   	a	is sent when a user action is performed
   	b	is sent when a widget does something and wants to notify other code
   	c	is sent when a widget detects several events happening in the correct sequence
   	d	is sent when an event is delivered to a window

QUESTION 9

1. In focus follow keyboard events are delivered to

   a		the window which was last clicked
   b		the nearest window with a text input widget
   c		the window containing the mouse
   d		the root window

QUESTION 10

1. A GUI timer can be inaccurate due to

   	a	the speed of the hardware on which the GUI is running
   	b	the GUI not receiving updates from the system clock
   	c	finite precision of the system clock
   	d	taking a long time to process a GUI event

BONUS: Create the detailed outline of this compare/contrast essay (10%)

‘Each small innovation generated changes in his life and in everyone’s. Whether it is a language system or a poem, they make the universe a different place’. let us compare between Nikola Tesla and Thomas Alva Edison. discoverer contributed to the event of the alternating-current (AC) electrical system which is widely used today and to the rotating flux, which is that the basis of most AC machinery while Edison invented the DC which is a smaller amount widely utilized in the current but he has many great inventions just like the electric bulb the phonograph and lots of more.

Edison and tesla worked together before tesla parted ways because of business scientific conflict. While Edison was an influential figure who focused on marketing and financial success, Tesla wasn't business-minded and was somewhat vulnerable because of which tesla suffered plenty to run his company. Edison managed to convince his investors about his inventions but tesla couldn't so he suffered.

In the end, Edison held 1,093 patents and Tesla held but 300 worldwide. Of course, Edison had a bunch of assistants helping him devise inventions and had also bought a number of these patients.

Tesla's inventions are the backbone of contemporary power and communication systems, but he faded into anonymity later within the 20th century. But later his invention caught the attention of an engineer and acquired his patents he saw that it's a future. But Edison had dispelled Tesla's AC system of electrical power transmission, calling it 'impractical', instead of promoting his simpler yet less efficient DC system.

Tesla didn't get the celebrity he deserved besides his inventions was of great practical use. Edison also launched a negative press-campaign in a trial to undermine the interest in AC power. With its repeated success and favorable press, the alternating-current system became the leading facility of the 20th century and it's remained the worldwide standard since.

Tesla suffered a breakdown and eventually returned to the figure as a consultant primarily. But as time passed, his ideas progressively became strange and impractical. He also grew increasingly eccentric and devoted much of his time in caring for wold pigeons in the big apple City's parks. He even drew the FBI's attention for his mouth building a robust "death beam", which had also received some interest from the state during warfare II.

Discussion Topic: What are the different types of hearing loss? Follow the discussion guidelines below.

For the case study section only: Please only provide short answers for the case study No more than 2 sentence response. Answer all the questions in all case study scenarios.

1. Case Study: Childhood Obesity

Mason is a 7-year-old boy who is at his primary care physician for a routine physical examination. Mason’s mother expresses concern about childhood obesity and is worried that he sleeps too much.

Subjective Data: Mason has been eating more than usual. Mason sleeps between 11 and 12 hours a day. Mason plays team soccer.

Objective Data

Height: 121 cm

Weight: 23 kg

Vital signs: temp, 37º C; pulse, 78 bpm; resp, 22 breaths/min; blood pressure, 102/62 mm Hg

Height: 90 cm

Mason has a normal physical examination for his age.

Questions:

1. 1. What should the nurse tell Mason’s mother when discussing her concerns about childhood obesity?
   2. What can Mason’s mother do to help Mason maintain a healthy weight?
   3. Mason’s mother has questions about his joining a soccer team. What should the nurse tell her?
2. Case Study: Brain Tumor

Caroline is an 11-year-old girl who has an inoperable brain tumor. Caroline has been admitted for palliative care. Her mother, father, and two siblings are with her.

Subjective Data: Caroline complains of a severe headache. She states that she is “afraid to be alone.”

Objective Data

Vital signs: temp, 37.8º C; pulse, 120 bpm; resp, 24 breaths/min; blood pressure, 110/60 mm Hg

Caroline is unable to walk unassisted.

Her pupils are unequal 4 mm right and 6 mm left.

Questions:

1. What is the most immediate priority for Caroline?
2. How can Caroline’s nurse help with Caroline’s fears?
3. How can Caroline’s nurse maintain professional boundaries?

3. Case Study: Hyphema

Johnny is a 10-year-old boy who seeks care after being hit in the right eye with a stuffed snake by his brother 15 minutes before arrival.

Subjective Data: Johnny complains of light sensitivity. Vision in the right eye is blurred.

Objective Data

Vital signs: temp, 36.8º C; pulse, 90 bpm; resp, 18 breaths/min; blood pressure, 110/60 mm Hg

Pupils: Left, 3 mm briskly reactive to light. Right, 3 mm and sluggishly reactive to light

Visual acuity: Right eye unable to see chart; left eye 20/15

Approximately a 30% hemorrhage is noted to the anterior chamber of the right eye with an intact globe.

Questions:

1. Johnny is at risk for what complications?
2. What measures may help prevent these complications?
3. What should the nurse do in this situation? Prioritize these actions.

Discussion Topic: What are the different types of hearing loss? Follow the discussion guidelines below.

For the case study section only: Please only provide short answers for the case study No more than 2 -3 sentence response. Answer all the questions in all case study scenarios.

1. Case Study: Childhood Obesity

Mason is a 7-year-old boy who is at his primary care physician for a routine physical examination. Mason’s mother expresses concern about childhood obesity and is worried that he sleeps too much.

Subjective Data: Mason has been eating more than usual. Mason sleeps between 11 and 12 hours a day. Mason plays team soccer.

Objective Data
Height: 121 cm
Weight: 23 kg
Vital signs: temp, 37º C; pulse, 78 bpm; resp, 22 breaths/min; blood pressure, 102/62 mm Hg
Height: 90 cm
Mason has a normal physical examination for his age.
Questions:
What should the nurse tell Mason’s mother when discussing her concerns about childhood obesity?
What can Mason’s mother do to help Mason maintain a healthy weight?
Mason’s mother has questions about his joining a soccer team. What should the nurse tell her?

2. Case Study: Brain Tumor
Caroline is an 11-year-old girl who has an inoperable brain tumor. Caroline has been admitted for palliative care. Her mother, father, and two siblings are with her.
Subjective Data: Caroline complains of a severe headache. She states that she is “afraid to be alone.”
Objective Data
Vital signs: temp, 37.8º C; pulse, 120 bpm; resp, 24 breaths/min; blood pressure, 110/60 mm Hg
Caroline is unable to walk unassisted.
Her pupils are unequal 4 mm right and 6 mm left.
Questions:
What is the most immediate priority for Caroline?
How can Caroline’s nurse help with Caroline’s fears?
How can Caroline’s nurse maintain professional boundaries?

3. Case Study: Hyphema
Johnny is a 10-year-old boy who seeks care after being hit in the right eye with a stuffed snake by his brother 15 minutes before arrival.
Subjective Data: Johnny complains of light sensitivity. Vision in the right eye is blurred.
Objective Data
Vital signs: temp, 36.8º C; pulse, 90 bpm; resp, 18 breaths/min; blood pressure, 110/60 mm Hg
Pupils: Left, 3 mm briskly reactive to light. Right, 3 mm and sluggishly reactive to light
Visual acuity: Right eye unable to see chart; left eye 20/15
Approximately a 30% hemorrhage is noted to the anterior chamber of the right eye with an intact globe.
Questions:
Johnny is at risk for what complications?
What measures may help prevent these complications?
What should the nurse do in this situation? Prioritize these actions.

Plz convert this C++ code into JAVA code thanks

#include<iostream>

using namespace std;

//function for calculating the average sightings from the Total Sightings array
float calcAverage(float totalSightings[],int n)
{
   int i;
   float sum=0.0;
   for(i=0;i<n;i++)
   sum=sum+totalSightings[i];
   return sum/n;
}

int main()
{
   // n is no. of bird watchers
   //flag , flag2 and flag3 are for validating using while loops
   int n,i,flag,flag2,flag3;
  
   //ch also helps in validating
   char ch;
   cout<<"------------------Welcome to the Prince William County Bird Watching weekend tracking system---------------------";
   while(1)
   {
       cout<<"\nPlease enter the number of bird watchers:\n";
       cin>>n;
       if(n==0)
       {
           flag=1;
           break;
       }
       else if(n>0 and n<100)
       {
           flag=2;
           break;
       }
       else
       {
           /*
           here I have added ch as an extra variable cause you don't tell in the question that what happen if user enters value equal to
           greater than 100 , you have only told for between 0 and 100 and for 0 also,thats why i added this
           */
           cout<<"\nInvalid input, want to enter again , if yes press 'y' else 'n' for no : ";
           cin>>ch;
           if(ch=='y')
           continue;
           else
           {
               flag=1;
               break;
           }
       }
   }
  
   //prints the goodbye message
   if(flag==1)
   {
       cout<<"\nGoodbye !!";
   }
  
   //if user enters valid n , then :-
   else if(flag==2)
   {
      
       char BirdWatcherName[n][30]; // this char array is for entering the names of the bird watchers
       float SightingSaturday[n],SightingSunday[n],totalSightings[n]; //these functions are for sightings on saturday,sunday and total sightings respectively.
      
      
       for(i=0;i<n;i++)
       {
           cout<<"\n-------------------------Bird Watcher"<<i+1<<" -------------------------";
           cout<<"\nPlease enter the bird watcher’s Name:\n";
          
           //clearing buffer
           cin.clear(); cin.sync();
           cin.getline(BirdWatcherName[i],30);
          
           ch='y';
          
           //this while loop is for validating that the sightings quantity is between 0 and 250 or not .And flag2 helps in checking this.
           while(ch!='n')
           {
               cout<<"\nPlease enter the birds sighted on Saturday:\n";
               cin>>SightingSaturday[i];
               if(SightingSaturday[i]<0 || SightingSaturday[i]>250)
               {
                   cout<<"\nInvalid input , wanna enter again? , press 'y' for yes or 'n' for no :- ";
                   cin>>ch;
                   if(ch=='y')
                   {
                       continue;
                   }
                   else
                   {
                       flag2=2;
                       break;
                   }
               }
               else
               {
                   flag2=1;
                   break;
               }
           }
           if(flag2==2)
           {
               flag3=2;
               break;
           }
           else
           {
               ch='y';
   //this while loop is again for validating that the sightings quantity is between 0 and 250 or not .And flag2 helps in checking this.
               while(ch!='n')
               {
                   cout<<"\nPlease enter the birds sighted on Sunday:\n";
                   cin>>SightingSunday[i];
                   if(SightingSunday[i]<0 || SightingSunday[i]>250)
                   {
                       cout<<"\nInvalid input , wanna enter again? , press 'y' for yes or 'n' for no :- ";
                       cin>>ch;
                       if(ch=='y')
                       {
                           continue;
                       }
                       else
                       {
                           flag3=2;
                           break;
                       }
                   }
                   else
                   {
                       flag3=1;
                       break;
                   }
               }
           }
           if(flag3==2)
           {
               break;
           }
       }
      
       if(flag3==2)
       {
           cout<<"\nGoodbye";
       }
       else
       {
           cout<<"\n------------------------------------------------PWC Birdwatching Statistics---------------------------------------------\n";
           cout<<"\nBird Watcher SaturdaySighings Sunday Sightings Total Sightings";
           for(i=0;i<n;i++)
           {
               totalSightings[i]=SightingSaturday[i]+SightingSunday[i];
           }
          
           for(i=0;i<n;i++)
           {
               cout<<endl<<BirdWatcherName[i]<<" "<<SightingSaturday[i]<<" "<<SightingSunday[i]<<" "<<totalSightings[i];
           }
          
           //calling for the calcAverage() function for calculating the average of total sightings
           cout<<"\nAverage Sightings "<<calcAverage(totalSightings,n)<<endl;
          
           //this part is for finding maximum total sighting and its index
           int index;
           float maximum;
           maximum=totalSightings[0];
           for(i=0;i<n;i++)
           {
               if(totalSightings[i]>maximum)
               {
                   maximum=totalSightings[i];
                   index=i;
               }
           }
          
           cout<<"\nThe Bird Watcher with the most sightings of "<<totalSightings[index]<<" is "<<BirdWatcherName[index];
          
           //program over
           cout<<"\n----------------------------------------------Thanks For Using Our Program---------------------------------";
       }
      
   }
   return 0;
  
}

We will do some basic data analysis on information stored in external files.

You will find the following data files in the Source Code -> Chapter 7 folder you should have downloaded already downloaded/unzipped in Lesson 3. If you need that link again:

Pyton4E_Source_Code.zip

GirNames.txt
contains a list of the 200 most popular names given to girls born in US from year 2000 thru 2009

BoyNames.txt
contains a list of the 200 most popular names given to boys born in US from year 2000 thru 2009

Hint: See Program 7-15 read_list.py for example of reading a file's contents into a list and using a loop to strip each \n

Here is the high-level algorithm (you still have work to do :)

open BoyNames.text for reading
read all lines into a list
close the file
while there are elements in list
strip the \n from each element
open GirlNames.txt for reading
read all lines into a list
close file
while there are elements in list
strip \n from each element
get user input for boy
get user input for girl
display result for boy's name entered by user (you need a decision structure as output depends on user input)
display result for girl's name entered by user (you need a decision structure as output depends on user input)

Input: a boy's name, a girl's name, or 'N' for none
Output: messages indicating whether the names were among the most popular

Note: Use a try/except to catch IOError
as anytime we deal with external files, problems may occur (file doesn't exist, we don't have permissions, disk is corrupted, and so on).

Sample Input/Output

IMPORTANT NOTE: The external files MUST be in same directory as your source code.

You may run your code on the command line/system prompt (as I have done) OR from IDLE (Run->Run Module or F5).

Here is first run showing output when user input for both boy and girl are popular names (user input shown in italics/bold ).

Enter a boy's name, or N if you do not wish to enter a boy's name: Michael
Enter a girl's name, or N if you do not wish to enter a girl's name: Emma
Michael is one of the most popular boy's names.
Emma is one of the most popular girl's names.

Here is a second run where user says 'N' to entering names

$ python babyname.py
Enter a boy's name, or N if you do not wish to enter a boy's name: N
Enter a girl's name, or N if you do not wish to enter a girl's name: N
You chose not to enter a boy's name.
You chose not to enter a girl's name.

Here is third run showing user input with a girl name not in the GirlNames.txt file:

$ python babyname.py
Enter a boy's name, or N if you do not wish to enter a boy's name: John
Enter a girl's name, or N if you do not wish to enter a girl's name: Ada
John is one of the most popular boy's names.
Ada is not one of the most popular girl's names.

Note: We will test code with THREE sample runs:

• First run uses the names Michael and Emma (see sample run above)
• Second run user enters N for both of the prompts (answer N for boys and N for girls)
• Third run we enter names of our choice but at least one is NOT popular.

this is what i did for this assignment but i got some error could you please help me with it

def main():
#open BoyNames.text for reading
infile = open('BoyNames.text', 'r')
#read all lines into a list
BoyNames = infile.readlines()
#close the file
infile.close()
#while there are elements in list
#strip the \n from each element
index = 0
while index < len(BoyNames):
BoyNames[index] = BoyNames[index].rstrip('\n')
index += 1
  

#open GirlNames.txt for reading
infile = open('GirlNames.txt', 'r')
#read all lines into a list
GirlNames = infile.readlines()
#close the file
infile.close()
# while there are elements in list
# strip \n from each element
index = 0
while index < len(GirlNames):
GirlNames[index] = GirlNames[index].rstrip('\n')
index += 1
  
#get user input for boy
try:
BoyName = input ("Enter a boy's name, or N if you do not wish to enter a boy's name:")
print (BoyNames)

GirlName = input ("Enter a gilr's name, or N if you do not wish to enter a girl's name:")
print (GirlNames)

except IOError:
print ("You chose not to enter a girl's name.")

  

main()

1.         Trading volume on the New York Stock Exchange has been growing in recent years. For the first two weeks of January 1998, the average daily volume was 646 million shares (Barron’s, January 1998). The probability distribution of daily volume is approximately normal with a standard deviation of about 100 million shares.

a.   What is the probability trading volume will be less than 400 million shares?

b.   What percentage of the time does the trading volume exceed 800 million shares?

3. If the exchange wants to issue a press release on the top 5% of trading days, what volume will trigger a release?

2. Suppose that the average client charge per hour for lawyers in the state of Iowa for out-of-court work is $125. Suppose further that a random telephone sample of 25 lawyers in Iowa is taken. If the population standard deviation is $50,

1. What is the probability of getting a sample mean equal or greater than $110 per hour?

2. What is the probability of getting a sample mean less than $100 per hour?

3. What is the probability of getting a sample mean of between $120 and $130 per hour?

Matlab

The following matrix describes Injury Severity Score (ISS, unitless) and hospital stay (days). Row 1 is the ISS and row 2 is the hospital stay.

[64,35,50,46,59,41,27,39,66;

8,2,5,5,4,3,1,4,6].    

Create a script that plots stay in hospital vs ISS. Label the plot and all axis. Display to the command window a message with the mean ISS score, and the mean days in hospital. (i.e. “The mean ISS score is 30”, not just x = 30).

Use the sort(x) to arrange a vector in ascending order

Question: On the plot select “Tools” -> “Basic Fitting”. A window will pop up for line fitting. Select the box “linear”. Press the right arrow button to get the coefficient values for linear fit. What is the estimated stay for a patient with a ISS of 55?

Make note of the formula as it will be used later.

Calculating ISS for an individual involves taking scores from an Abbreviated Injury Scale (AIS) from 0 – 5 for six different body areas head, face, chest, abdomen, extremities, and external. The three body areas with the highest score have their AIS squared and are added together to produce an ISS for individual.