Numerical Analysis Help

The problems I need solved are attached. Please provide as much detail as possible and include comments for the code done in MATLAB, so I can understand. Thanks

Stats Ch11

Please see attached Chapter 11, exercise 4 4. As part of a study of corporate employees, the Director of Human Resources for PNC, Inc. wants to compare the distance traveled to work by employees at their office in downtown Cincinnati with the distance for those in downtown Pittsburgh. A sample of 35 Cincinnati employees showed they travel a mean of 370 miles per month, with a standard deviation of 30 miles per month. A sample of 40 Pittsburgh employees showed they travel a mean of 380 miles per month, with a standard deviation of 26 miles per month. At the .05 significance level, is there a difference in the mean number of miles traveled per month between Cincinnati and Pittsbur... click for more

Stats 10

Please see attached Chapter 9, exercise number 12 12. The American Sugar Producers Association wants to estimate the mean yearly sugar consumption. A sample of 16 people reveals the mean yearly consumption to be 60 pounds with a standard deviation of 20 pounds. a. What is the value of the population mean? 20 What is the best estimate of this value? b. Explain why we need to use the t distribution. What assumption do you need to make? c. For a 90 percent confidence interval, what is the value of t? d. Develop the 90 percent confidence interval for the population mean. X ± 1.645(S/ ) n = 16, = 60, S = 20 e. Would it be reasonable to conclude that the population ... click for more

Stats questions

Please see attached Chapter 10, exercise number 18 18. The management of White Industries is considering a new method of assembling its golf cart. The present method requires 42.3 minutes, on the average, to assemble a cart. The mean assembly time for a random sample of 24 carts, using the new method, was 40.6 minutes, and the standard deviation of the sample was 2.7 minutes. Using the .10 level of significance, can we conclude that the assembly time using the new method is faster? A. Analysis of variance (ANOVA) is used to determine if there is a difference between the means of different populations. For example, I had a student in Prescott who raised hens. A company was ... click for more

Quantitative Methods

1. For the linear program: Max 2A + 3B s.t. 1A + 2B ≤ 6 5A + 3B ≤ 15 A,B ≥ 0 Find the optimal solution using the graphical solution procedure. What is the value of the objective function at the optimal solution? 2. Solve the following linear program using the graphical solution procedure. Max 5A + 5B s.t. 1A ≤ 100 1B ≤ 80 2A + 4B ≤ 400 A, B ≥ 0