Chapter 9.2, Problem 20E

For these exercises, perform each of these steps. Assume that all variables are normally or approximately normally distributed.

1. a        State the hypotheses and identify the claim.
2. b        Find the critical value(s).
3. c         Compute the test value.
4. d        Make the decision.
5. e         Summarize the results.

Use the traditional method of hypothesis testing unless otherwise specified and assume the variances are unequal

20. Miniature Golf Scores A large group of friends went miniature golfing together at a par 54 course and decided to play on two teams. A random sample of scores from each of the two teams is shown. At α = 0.05, is there a difference in mean scores between the two teams? Use the P-value method.

Team 1	61	44	52	47	56	63	62	55
Team 2	56	40	42	58	48	52	51