MATH 3339 (MATH 3339)

Question 6 Your answer is CORRECT. Identify the most appropriate test to use for the following situation: A national computer retailer believes that the average sales are greater for salespersons with a college degree. A random sample of 14 salespersons with a degree had an average weekly sale of $3542 last year, while 17 salespersons without a college degree averaged $3301 in weekly sales. The standard deviations were $468 and $642 respectively. Is there evidence to support the retailer'...

Question 7 Your answer is CORRECT. A sample of 30 boxes of cereal has a sample standard deviation of 0.81 ounces. Construct a 93% confidence interval to estimate the true standard deviation of the filling process for the boxes of cereal. a) (0.656, 1.064) b) (0.520, 1.100) c) (0.430, 1.132) d) (0.729, 0.729) e) None of the above Question 9 Your answer is CORRECT This is a written question, worth 17 points. DO NOT place the problem code on the answer sheet. A proctor will fill this ou...