Football. A student runs an experiment to test four different grips on his football throwing distance, recording the distance in yards that he can throw the football using each grip. He randomizes the grip used each time by drawing numbers out of a hat until each grip has been used 5 times. After collecting his data and analyzing the results, he reports that the P-value of his test is 0.0032.

a) What kind of test should he have performed?

b) What are the null and alternative hypotheses?

c) Assuming that the conditions required for the test are satisfied, what would you conclude?

d) What else about the data would you like to see in order to check the assumptions and conditions?

e) What might he want to test next?