1) A sample of 26arrival times for the Hurricane shuttle last spring provides a samplevariance of 48and a sample of 16arrival times for the Hurricane shuttle this fall provides a sample variance of 20.Using a five percent level of signifcancecan one say there is a difference between the two variances at the five percent level of significance?What is your p-valueWrite your answer to three decimal places.

2)Henry is comparing the proportion of errors made in the hand production of tools by two groups of workers.In the first group,a review of 250tools was made and 35of the tools had small imperfections.In the second group,a review of 300tools was made and 27had small imperfections.Is there a significant difference in the proportion of imperfections between the two groups at the five percent level of significance?What is your p-value?writeanswertothree decimal places.

3)Jorge is interested in if there is a difference in the time it takes to open a savings account versus a checking account.He samples 14savings account openings and found the mean and standard deviation to be 35 minutes and 3 minutes, respectively.He samples 20 checking account openings and found the mean and standard deviation to be 38 minutes and 4 minutes, respectively.First test to see if you should pool the variance.Are the variances equal?(yes or no)what is the p-value for the F test?Is there a significant difference in the mean time it takes to open the accounts at the five percent level of significance?What is your p-value for the test about the means?