A ski company in Vail owns two ski shops, one on the west side and one on

Question:

A ski company in Vail owns two ski shops, one on the west side and one on the east side of Vail. Ski hat sales data (in dollars) for a random sample of 5 Saturdays during the 2004 sea- son showed the following results. Is there a significant difference in sales dollars of hats between the west side and east side stores at the 5 percent level of significance?
(a) State the hypotheses.
(b) State the decision rule and sketch it.
(c) Find the test statistic and state your Hats conclusion.