How much time do you spend talking on your phone per day?

Guess the number of minutes you think you spend talking on the phone each day. This is your null hypothesis.

Secure the data from your phone for the past month and conduct a one sample hypothesis test of the mean length of your phone calls per day.   Be sure to show all your work by using excel and include your data set. Use a significance level of 0.05. You will have 30 data values showing the total of minutes you spend per day. (The easiest way to secure this data is to look at your "Recent" calls on your phone and list the total number of minutes that you have spent on the phone each day in the last 30 days. This will be the data that you will use.)

A shipping company ShipCo supplies four destinations (D1,D2,D3,D4) from four sources (S1,S2,S3,S4). The shipping cost (in dollars) per shipment from each source to each destination is given below.

The four sources make 10, 20, 20, and 10 shipments per month, respectively. The four destinations need to receive 20, 10, 10, and 20 shipments per month, respectively. The manager of ShipCo now wants to determine the best plan for how many shipments to send from each source to each destination each month. The objective is to minimize the total shipping cost. Answer the following questions:
(a) Formulate this transportation problem as an LP. Clearly explain your variables and constraints.
(b) Use the Northwest corner method to find an initial BFS.
(c) Starting from the initial BFS in part (b), apply the transportation algorithm to solve this problem.

An Antique dealer needs to store records of the items in the inventory into a stack (the dealer believes that keeping items longer will be beneficial; nonetheless, the business logic here is not important!). Besides the usual push() and pop(); the dealer needs to always know what is the most expensive item in the inventory/stack. You are hired to implement a new method, called max(), which returns the current maximum value for any item in the stack. Notice that the stack grows and shrinks dynamically as elements are added or removed from the stack (i.e. the contents of the stack are not fixed).

a. Write the pseudocode of the max() method.

b. What is the Big-O complexity of your solution? Explain clearly how you obtained such complexity.

c. Is it possible to have all three methods (push(), pop() and max()) be designed to have a complexity of O(1)? If no; explain why this is impossible. If yes; provide the pseudocode of the algorithm that would allow O(1) for all three methods

Securing Information Systems

Chapter eight in the Laudon text is filled with many examples of how computer systems are vulnerable due to failure, destruction, errors, and abuse. And the never ending onslaught of security breaches continues to escalate despite the lessons learned. It is evident that maintaining good information systems security is a full time endeavor.

By doing a search of the Internet or by other research methods, find an example of an organization that faced an information systems security issue or crisis.

Ponder these questions:

1) How did the organization identify that there was a security problem?

2) What, if any, security infrastructure and policies were in place when the problem occurred?

3) What initial actions were taken to deal with the situation?

4) From a management perspective, what, if any, new organizational policies and procedures did they institute?

5) Were any new security tools and technologies eventually implemented to further safeguard their systems?

6) What was the business impact? How did they recover? Were there any legal ramifications, loss of customers, or damage of reputation?

7) Generally speaking, how can a business determine the value of investing in security and control?

You're driving down the highway late one night at 20m/s when a deer steps onto the road 54 m in front of you. Your reaction time before stepping on the brakes is 0.50s, and the maximum deceleration of your car is 10m/s2.

Part A How much distance is between you and the deer when you come to a stop? Express your answer to two significant figures and include the appropriate units.

s =

Part B What is the maximum speed you could have and still not hit the deer? Express your answer to two significant figures and include the appropriate units.

v=

Describe how we can use Markov analysis to make future predictions. 200-250 word response

It is required that this program be written in ARM Assembly using raspberry pi. Submit an ARM assembly program that does the following:

1. Prompt for the user to enter a number (integer).

2. If the entered number is <100 print: "The input number is less than 100."

3. If the entered number is >=100 print: "The input number is greater than or equal to 100."

4. Prompt for the user to enter a single character.

5. If the entered character is lower case (a..z) print: "Lower case letter entered."

6. If the entered character is upper case (A..Z) print: "Upper case letter entered."

7. Otherwise print: "Special character entered." 8. Return control to the operating system.

I SEE THIS QUESTION HAS BEEN POSTED IN THE PAST AND NEVER RECEIVED A CORRECT ANSWER. THIS PROGRAM MUST BE WRITTEN IN ARM ASSEMBLY USING THE ARM PROCESSOR FOUND ON A RASPBERRY PI. IT CAN ALSO BE WRITTEN USING THE RASPBERRY PI EMULATOR THAT CAN BE FOUND ONLINE FOR FREE. PLEASE DO NOT POST THE ANSWER IN A DIFFERENT PROGRAMMING LANGUAGE. THANK YOU!

Suggest ideas for an interface, which uses the properties of sound effectively.

Let A be an n x n matrix satisfying A²=A (idempotent). Find all eigenvalues and eigenvectors of A.

I know that the eigenvalues are 0 and 1 -- I do not know how to find the eigenvectors.

"This C Programming "

Write a program that accepts four (4) lines of input:

• The first line contains a float value in 4.2f format

• The second line contains a char value

• The third line contains a 4-digit int value

• The fourth line contains a char value

and then displays all of the input on a single line

Write a program that accepts a phone number of the form +1(xxx)-xxx-xxxx

where x is a digit, and displays the sum of all digits in the phone number.

You are evaluating a project for The Tiff-any golf club, guaranteed to correct that nasty slice. You estimate the sales price of The Tiff-any to be $410 per unit and sales volume to be 1,200 units in year 1; 1,325 units in year 2; and 1,000 units in year 3. The project has a 3-year life. Variable costs amount to $230 per unit and fixed costs are $100,000 per year. The project requires an initial investment of $162,000 in assets, which will be depreciated straight-line to zero over the 3-year project life. The actual market value of these assets at the end of year 3 is expected to be $34,000. NWC requirements at the beginning of each year will be approximately 30 percent of the projected sales during the coming year. The tax rate is 30 percent and the required return on the project is 12 percent.

What is the operating cash flow for the project in year 2?

n this exercise, you create a program for the sales manager at Computer Haven, a small business that offers motivational seminars to local companies. Figure 7-53 shows the charge for attending a seminar. Notice that the charge per person depends on the number of people the company registers. For example, the cost for four registrants is $400; the cost for two registrants is $300. The program should allow the sales manager to enter the number of registrants for as many companies as needed. When the sales manager has finished entering the data, the program should calculate and display the total number of people registered, the total charge for those registrants, and the average charge per registrant. For example, if one company registers four people and another company registers two people, the total number of people registered is six, the total charge is $700, and the average charge per registrant is $116.67. Number of people a company registers . Charge per person ($)

1 – 3 150

4 – 9 100   

10 or more 90

fig 7-53   

a.Create an IPO chart for the problem, and then desk-check the algorithm appropriately.b.List the input, processing, and output items, as well as the algorithm, in a chart similar to the one shown earlier in Figure 7-42. Then code the algorithm into a program.c.Desk-check the program using the same data used to desk-check the algorithm.d.If necessary, create a new project named Advanced25 Project, and save it in the Cpp8\Chap07 folder. Enter your C++ instructions into a source file named Advanced25.cpp. Also enter appropriate comments and any additional instructions required by the compiler. Display the average charge with two decimal places

Assume that the monthly profits of a company are given in an array, each entry representing
the profits for the corresponding month. Propose an algorithm to find a group of consecutive
months where the profit was the highest.
For example, the profits, in millions, for a year Jan-Dec is given by
A=[2 -5 3 4 0 -1 5 8 -9 1 -2 0];
The highest profit was from the period March-August and the value is 19 million. Assume
that the array can be very large{not just 12 months. Submit a well comment c++ pseudocode along
with an example of the algorithm

Solve for algorithms with complexity O(n)

I don't know which one is wrong. Can you please check.

Thank you

QUESTION 1

1. In the following code, how many and which functions have been defined/declared?

   def powerNum(power):

   pNum = n ** power

   return pNum

   n = int(input("Enter a number whose power you want to calculate: "))

   def main():

   p = int(input("Enter the power number: "))

   print ("Power of the number you entered is", powerNum (p))

   main()

   		1 function: powerNum
   		1 function: powerNum
   		3 functions: powerNum, and main is defined/declared twice.
   		2 functions: powerNum and main

QUESTION 2

1. In the following code, which of the variable(s) is (are) considered as global variable(s):

   def powerNum(power):

   pNum = n ** power

   return pNum

   n = int(input("Enter a number whose power you want to calculate: "))

   def main():

   p = int(input("Enter the power number: "))

   print ("Power of the number you entered is", powerNum (p))

   main()

   		p and power
   		pNum
   		p
   		power
   		n

QUESTION 3

1. In the following code, which line of code is returning the value for function powerNum?

   def powerNum(power):

   pNum = n ** power

   return pNum

   n = int(input("Enter a number whose power you want to calculate: "))

   def main():

   p = int(input("Enter the power number: "))

   print ("Power of the number you entered is", powerNum (p))

   main()

   		def powerNum(power):
   		print ("Power of the number you entered is", powerNum (p))
   		return pNum
   		pNum = n ** power

QUESTION 4

1. In the following code, which of the variable(s) is (are) considered as parameter variable(s):

   def powerNum(power):

   pNum = n ** power

   return pNum

   n = int(input("Enter a number whose power you want to calculate: "))

   def main():

   p = int(input("Enter the power number: "))

   print ("Power of the number you entered is", powerNum (p))

   main()

   		n
   		pNum
   		p and power
   		p
   		power

QUESTION 5

1. After learning about the issues with global variables, Amita took the old code with global variables in cell A and re-wrote without global variables. Based on the partial code done in the cell below, what changes, if any, need to be made to the code in cell-B below?

   cell-A: Old code with global variables	cell-B: Partial new code without global variables
   def powerNum(power): pNum = n ** power return pNum n = int(input("Enter a number whose power you want to calculate: ")) def main(): p = int(input("Enter the power number: ")) print ("Power of the number you entered is", powerNum (p)) main()	def powerNum(power): pNum = n ** power return pNum def main(): n = int(input("Enter a number whose power you want to calculate: ")) p = int(input("Enter the power number: ")) print ("Power of the number you entered is", powerNum (p)) main()

   		We need to just change powerNum function to accept two parameters: one for power value and one for the number as below def powerNum(power, n):
   		No changes need to be made to main or powerNum functions
   		Yes, powerNum should now be defined with two parameters: one for power value and one for the number as below def powerNum(power, n): Also we will need to change how the function is called in main function as below: powerNum(p,n)
   		We need to just pass the additional argument when the powerNum function is called in main function as below: powerNum(p,n)

QUESTION 6

1. In the following code, which line of code is calling or invoking function powerNum?

   def powerNum(power):

   pNum = n ** power

   return pNum

   n = int(input("Enter a number whose power you want to calculate: "))

   def main():

   p = int(input("Enter the power number: "))

   print ("Power of the number you entered is", powerNum (p))

   main()

   		return pNum
   		def powerNum(power):
   		pNum = n ** power
   		print ("Power of the number you entered is", powerNum (p))

QUESTION 7

1. In the following code, which line of code is defining or declaring function powerNum?

   def powerNum(power):

   pNum = n ** power

   return pNum

   n = int(input("Enter a number whose power you want to calculate: "))

   def main():

   p = int(input("Enter the power number: "))

   print ("Power of the number you entered is", powerNum (p))

   main()

   		def powerNum(power):
   		return pNum
   		pNum = n ** power
   		print ("Power of the number you entered is", powerNum (p))

QUESTION 8

1. In the following code, which of the variable(s) is(are) considered as argument(s):

   def powerNum(power):

   pNum = n ** power

   return pNum

   n = int(input("Enter a number whose power you want to calculate: "))

   def main():

   p = int(input("Enter the power number: "))

   print ("Power of the number you entered is", powerNum (p))

   main()

   		p and power
   		n
   		power
   		p
   		pNum

QUESTION 9

1. In python, how can you pass arguments to a function?

   		by keyword arguments only and can be in any order
   		default is by position but you can also pass by keyword arguments as in the case below: show_interest (rate=0.01, periods=10, principal=10000.0)
   		by position only and they must be passed in the same order in which they are defined in the function header
   		by position only and they can be passed in any order irrespective of how are they are defined

QUESTION 10

1. In the following code, in which order do the lines of code get executed?

   def powerNum(power):

   pNum = n ** power

   return pNum

   n = int(input("Enter a number whose power you want to calculate: "))

   def main():

   p = int(input("Enter the power number: "))

   print ("Power of the number you entered is", powerNum (p))

   main()

   		getting input n from the user >>  calling main function >> calling powerNum function >> ending in powerNum function
   		calling powerNum function >>  getting input n from the user >>  calling main function
   		getting input n from the user >> calling main function >> calling powerNum function >> returning back to main function from powerNum function