A 613-kg elevator starts from rest and moves upward for 2.50 s with constant acceleration until it reaches its cruising speed, 1.63 m/s.

(a) What is the average power of the elevator motor during this period?

(b) How does this amount of power compare with its power during an upward trip with constant speed? (Give the power during an upward trip with constant speed.)

Seven people are in an elevator which stops at ten floors. In how many ways can they get off the elevator?

10^7

C(10,7)

7^10

P(10,7)

A hiking group consists of 12 students and 2 leaders. A leader must be at the front and back of the line. How many ways can the group hike in a line?

14!

12!*2!

14!/2!

12!

1. Calculate the probability of the following events. Make sure to reduce your answers to decimals
   1. You have a box of 100 raffle tickets. There will be two tickets drawn to determine the winners of the raffle. What’s the probability that you and your best friend both win the raffle? Assume that the drawing will be conducted without replacement.
   2. You have a box of 200 raffle tickets. There will be one ticket drawn to determine the winner of the raffle. What’s the probability that you or your best friend, or your roommate wins the raffle?
   3. You have a bag of marbles. In the bag are 3 green marbles, 2 blue marbles, and 6 red marbles. What is the probability of drawing 4 red marbles in 4 consecutive draws from the bag? Assume you’re sampling randomly and with replacement.

Bowie State University athletic department wants to develop its budget for the coming year, using a forecast for football attendance. Football attendance accounts for the largest portion of the University revenues. The new President of the university who is also a football fan has asked the athletic director to come up with strategies in promoting the university football team. The athletic director believes that attendance is directly related to the number of wins by the team. Instead of attempting to predict attendance based on only one variable (wins), the athletic department has included a second variable for advertising and promotional expenditures as well. The university president is anxious to know the result of this forecast to determine strategies that improve attendance and boost revenues for the University. The business manager of the BSU football team has accumulated total annual attendance figures for the past 8 years:  

Given the number of returning starters and the strength of the schedule, the athletic director believes the team will win at least seven games next year. He wants to develop a multiple regression equation for these data to forecast attendance for this level of success.

Discussion questions

1 Given that Attendance as the dependent variable and Wins and Promotion as independent variables, use excel to estimate the relationship between attendance and promotion and wins. (Copy results and paste).

2 What is the strength of this relationship? Use the coefficient of determination R squared from the excel output to describe this relationship.

3 Is the relationship significant? Use the “Fisher significance” from the excel output to determine this. Begin by stating the null and the alternate hypotheses

a) You have installed the DNS server role on a computer running Windows Server 2016 and in the process of configuring forward/reverse lookups. Explain the difference between “ping www.google.com” and “ping the IP address of Google server at 172.217.167.68”. You may want to try both and observe any differences. Your answer should include your explanation, as well as screenshots. [5 Marks]

b) Network administrators warn against configuring a file server to use DHCP. Explain what would happen if a file server was configured to use DHCP and, due to a power outage, the file server and DHCP server rebooted at the same time? Justify your answer.

Python program

A number game machine consists of three rotating disks labelled with the numbers 0 to 9 (inclusive). If certain combinations of numbers appear when the disks stop moving, the player wins the game.

The player wins if

• the first and third numbers are the same, and the second number is less than 5, or
• all three numbers are the same, or
• the sum of the first two numbers is greater than the third number;

otherwise the player loses.

Write a Python program to simulate this number game by randomly generating 3 integer values between 0 and 9 (inclusive), and printing whether the player has won or lost the game.

To randomly generate a number between and including 0 and 9, use the randintmethod from random library module. For example, x = random.randint(1,100)will automatically generate a random integer between 1 and 100 (inclusive) and store it in x.

Sample output 1:

Random numbers: 2 3 5
You lose.

Sample output 2:

Random numbers: 7 7 0
You win!

Introduction:

In this project you will create a generic linked list using
Java Generics.



Description:

   Create a generic class called GenLinkedList.  GenLinkedList will use nodes
   that store a value of the generic type to store its contents.

   It should have the following methods.  The methods should 
   all operate on the object making the call (none are static).  

   Perform checking of the parameters and throw exceptions where 
   appropriate.

   The linked list should be singly-linked.

   It should not use sentinel nodes (empty header and tail nodes).  

   You should strive for an efficient implementation of each method.


7 points each (a-h)

   a.  addFront
        receives an item to add as a parameter, and adds to the front of the list.

   b.  addEnd
        receives an item to add as a parameter, and adds to the end of the list.

   c.  removeFront
        removes a node from the front of the list.

   d.  removeEnd
        removes a node from the end of the list.

   e.  set
        receives a position and item as parameters, sets the element at this
        position, provided it is within the current size

   f.  get
        receives a position as a parameter, returns the item at this position,
        provided it is within the current size

   g.  swap
        receives two index positions as parameters, and swaps the nodes at
        these positions, provided both positions are within the current size

   h.  shift
        receives an integer as a parameter, and shifts the list forward or
        backward this number of nodes, provided it is within the current size


11 points each (i-l)
   i.  removeMatching
        receives a value of the generic type as a parameter and removes all
        occurrences of this value from the list.

   j.  erase 
        receives an index position and number of elements as parameters, and
        removes elements beginning at the index position for the number of 
        elements specified, provided the index position is within the size
        and together with the number of elements does not exceed the size

   k.  insertList
        receives a generic List (a Java List) and an index position as parameters, 
        and copies each value of the passed list into the current list starting
        at the index position, provided the index position does not exceed the size.
        For example, if list has a,b,c and another list having 1,2,3 is inserted at
        position 2, the list becomes a,b,1,2,3,c

   l.  main
        add code to the main method to demonstrate each of your methods
  

Submit to eLearning:
 GenLinkedList.java

Anyone who bets money in a casino is classified as a winner if he or she wins more than he or she loses. Casino operators in Atlantic City, New Jersey, believe that the proportion of all players who go home a winner is 0.46. Suppose 75 Atlantic City gamblers are selected at random. a. [3 marks] Find the sampling distribution of the proportion of gamblers who go home winners. b. [2 marks] Find the probability that the sample proportion is less than 0.40. c. [2 marks] Find the probability that the sample proportion is more than 0.45. d. [3 marks] Find a symmetric interval about the mean (p=0.46) such that the probability that the sample proportion is in this interval is 0.99

Kat works as a global marketing manager for New Balance, a sneaker and apparel company located just outside of downtown Boston. She loves to eat at the restaurant near her office. Her favorite food is their specialty, Cuban sandwiches. If you're looking for Kat, you never have to look too far; you can find her here daily.
Kat hires a new member for her team, Marnie who recently transferred from their Middle East location. Marnie joins Kat for the Cuban sandwich on her first day and loves it. When they get on the elevator to go back to their office, Kat chuckles and says that every time she leaves the restaurant she says she smells like a cab driver.
Marnie was silent, not sure how to respond to Kat's comment. Marnie was offended, her boyfriend drives a cab.
What if the elevator was occupied by workers whose parents drove cabs? How could Kat's comments be taken? Choose all that apply.

Select one or more:

a. Kat's comment could be viewed as ignorant, racist, or offensive

b. Kat's comment is funny

c. Wow, what kind of company does she work for?

d. Ugh, I don't want to want to come here again

Kat works as a global marketing manager for New Balance, a sneaker and apparel company located just outside of downtown Boston. She loves to eat at the restaurant near her office. Her favorite food is their specialty, Cuban sandwiches. If you're looking for Kat, you never have to look too far; you can find her here daily.
Kat hires a new member for her team, Marnie who recently transferred from their Middle East location. Marnie joins Kat for the Cuban sandwich on her first day and loves it. When they get on the elevator to go back to their office, Kat chuckles and says that every time she leaves the restaurant she says she smells like a cab driver.
Marnie was silent, not sure how to respond to Kat's comment. Marnie was offended, her boyfriend drives a cab.
Kat has a meeting with a new client Abe from Algeria. He was riding in the elevator when Kat made the comment about smelling like a cab driver. Abe's father is a cab driver. His mother was recently diagnosed with breast cancer and the doctor said that it was likely caused by the deodorant she was wearing and requested that she stop wearing deodorant while she is being treated with chemotherapy. She is very self-conscious about not wearing deodorant. Abe is extremely appalled at Kat's comments and requests to speak with Kat's manager. What could happen as a result of Kat's behavior? Choose all that apply.

Select one or more:

a. Kat's manager removes Kat from the project

b. Kat receives additional training on how to be more culturally aware

c. Abe does not sign the contract and claims that it was Kat's comments that was the deciding factor

d. Marnie becomes head of the project and Abe signs the contract

e. Nothing, Kat was trying to be funny and this has been taken out of context