Complete the following chi square test:

Show All Work.

Example Chi Sq.

40% of Americans say that their favorite pastime is sports, 40% say that it’s time with their family, and 20% name something else. A survey of your neighborhood finds that 10 people report a preference for sports, 15 for being with their families, and 5 something else. Do your neighbors differ from Americans overall?

Is Paris, Chicago, or NY the most romantic city?

Please show all steps.

1. Kevin Stefanski wanted to see if there is a relationship between the number of penalties the Cleveland Browns players receive a year and the number of presents they receive for the holidays. He takes a random sample of nine players. The data is presented in the table below.

1A. Conduct a hypothesis test using the following steps. Set alpha = 0.05, two-tailed.

Step 1: State the hypotheses in symbols (including both H₀and H₁).

Step 2: Set up the criteria for making the decision. That is, find the critical value.

Step 3: Summarize the data into the appropriate test-statistic. That is, compute the correlation.

Step 4: Evaluate the Null Hypothesis (Reject or Fail to Reject?).

Step 5: State your conclusion (in words).

1B. What proportion of variability of number of presents received can be explained by the variability of number of penalties?

answer in basic JAVA im in and INTRO JAVA CLASS

Problem 2: Point of Sale System
The McDowell Restaurant chain has asked you to write a menu program for their new Fast-food
service machines. Your program already prints the following menu like this:
**********************************************************************
McDowell’s Restaurant
**********************************************************************
Make your selection from the menu below:
1. Regular Hamburger $1.50
2. Regular Cheeseburger $1.75
3. Fish Sandwich $2.50
4. Half-pounder with cheese $2.75
5. French Fries $0.99
6. Large Soft Drink $1.25
***********************************************************************
Select 1, 2, 3, 4, 5, or 6 ----- >
Your program must now read the customer’s selection and compute the total price of their
purchase, including 6.5% sales tax.

Input
The first line of input represents N, the number of test cases. The additional lines consists of a
sequence of integers scoped between 1 to 6. Each number should indicate a selection from the
above menu to be purchased.

Output
The program should print the sum of the orders plus tax as “Please pay $<dollars>”, where
<dollar> is the total amount of the purchase then conclude with “Thank you for eating at
McDowell’s”.

Sample Input Sample Output
1
1 4 4 5 3 1 Please pay $12.77
Thank you for eating at McDowell’s!

Dr. Lee now wants to generate a random sample of size 10,000 from the F distribution with df1 = 1 and df2 = 4 degrees of freedom. But he doesn’t remember the probability density function (pdf) of the F distribution at all. Fortunately, he knows the relationship between t distribution and F distribution. He knows that if X follows the t distribution with ν = 4 degrees of freedom, then X2 follows the F distribution with df1 = 1 and df2 = 4 degrees of freedom. 1. First use the Metropolis algorithm to generate a random sample of size 10,000 from the t distribution with ν = 4 degrees of freedom and then use the generated sample together with Dr. Lee’s knowledge to obtain the random sample following F distribution (df1 = 1, df2 = 4). 1 2. To verify Dr. Lee’s knowledge, compute the sample percentiles and compare with the F distribution (df1 = 1, df2 = 4) percentiles. (Hint: Use qf(p, df1, df2) to find F distribution percentiles.)

To study the effect of overfishing in the Indian ocean researchers compared fishing areas in north that had never been overfished (Group 1) with similar areas nearby that had been overfished 1 year earlier (Group 2) and 8 years earlier (Group 3). Assume plots are randomly selected. The variable “Fishes” is the count of fish in an area. Using the data below perform a post hoc analysis and discuss conclusion

1   29
1   21
1   19
1   33
1   16
1   20
1   24
1   27
1   28
1   19
2   12
2   12
2   15
2   9
2   20
2   18
2   17
2   14
2   14
2   2
2   17
2   19
3   18
3   4
3   22
3   15
3   18
3   19
3   22
3   12
3   12

Use any C program without using PTHREADS calculate time taken to execute program.

1. Write same program of question 1 using PTHREADS. Calculate time taken to execute program.(1 mark)
2. Identify data races in above program and explain why this situation occurred with an example (1 mark)
3. Rewrite the code to avoid data races should use any of the THREE techniques.(1.5 marks)

please I need the c code..

Run program using 1, 2, 4, and 8 threads Comparison study (1.5 marks)

4. Rewrite the program using OPENMP. Run on 4 processors. Calculate time taken.
5. At the end calculate speed up.

Consider the casual CT systems with transfer functions:

H1(s)= (s+1)/(s+2)(s^2+s+16)

H2(s)= s/(s+10)(s+1)

H3(s)= 1/(s-1)(s+1)

H4(s)= s/(s+1)(s^2+s+16)

1) Write magnitude and phase expression for their Bode Plots and Sketch their asymptotes. Verify Using Matlab.

2) Compute their steady-state response to cos(5t) u(t) + 3u(t) + cos(10t) e^-t u(t).

***Please show slope computations and conversions for the graphs. This is where I am unable to move forward.

19. Researchers compared the reaction times in people who were sleep deprived versus people who had gotten a full night's rest. The following are typical data showing the reaction time scores (in seconds) for two groups (samples) of participants.

______________________________

Sleep deprived              Well Rested   

3 5 2 3 7                   3 1 2 2 1

6 1 9 2 11                  1 2 3 3 5

10 3 3 5 4                  2 3 1 3 2

1. Compute the mean, the range, the variance, and the standard deviation for each group.
2. Is one group of scores more variable than the other?

• by python

• Question #1 Consider a 5-point quiz system. A score can be any number between 0 and 5. Using mathematical interval notation, the score is in the interval [0,5][0,5]. The interval notation (4,5](4,5] means that number 4 is not in the interval. Hence the numbers included in this interval are all real values ?x such that 4<?≤54

• The score is graded according to the following scale:

• Write a program that reads a quiz score and then prints out the corresponding grade.

• Note that your program should

  1. Prompt the user of your program using an appropriate message.
  2. Check that the input is within range (from 0 to 5). If the wrong input is given, the program should ask the user for input again until he enters a valid input.
  3. Print an output message reading: “Your grade is ” followed by the grade.

• The following are two sample runs of the program:

• Sample Run 1:
  Please enter score: -1
  Invalid score. Try again.
  Please enter score: 5.5
  Invalid score. Try again.
  Please enter score: 3.5
  Your grade is B

• Sample Run 2:
  Please enter score: 5
  Your grade is A

The following code must be written using matlab and must be using a for-loop. NOTE!

Write a computer program that assigns random integers for each entry and generates a row vector. Different random integers should be drawn from different intervals for position 1, position 2, position3 and position 4 of the array. After these first 4 positions are drawn. The whole thing should start over where position5 drawn from same interval as positions 1, position6 drawn from same interval as positions 2, position7 drawn from same interval as positions 3, position8 drawn from same interval as positions 4, And then this should be repeated for these chunks of 4 along the whole length of the sequence. The length should be able to with multiples of 4 and should be given as a constant in the top of the script. Thanks

  These intervals should be able to set by the user in the top of the script. Th