Suppose that someone claims that the mean number of credits taken by all WPU undergraduate students this semester is 13

Question 1 (4 points) Suppose that someone claims that the mean number of credits taken by all WPU undergraduate students this semester is 13. You have a sample of 100 students and find that the mean number of credits is 14.1 in the sample. The population standard deviation is 6. Using a level of significance ? of 0.05, test the null hypothesis H0: m = 13. Question 2 (4 points) Suppose that someone claims that the mean number of credits taken by all WPU undergraduate students this semester is at least 13. You have a sample of 100 students and find that the mean number of credits is 14.1 in the sample. The population standard deviation is 6. Using a level of significance ? of 0.05, test the null hypothesis H0: m ? 13. Question 3 (4 points) Suppose that you want to test the claim that the mean length of employment of individuals currently employed at small businesses in the U.S. is 8 years or less. The level of significance for the test is 0.05. If it is possible to carry out this hypothesis test, do so. If it is not possible, explain why it is not possible. Question 4 (6 points) Suppose that you want to test the claim that the mean weight of ostrich eggs is 3 pounds. You collect a sample of 54 ostrich eggs and find that the mean weight in the sample is 3.2 pounds. The standard deviation is 0.3 pounds. Using a level of significance ? of 0.05, test the claim using the p-value

find the cost of your paper