Question

21.) A ski insurance company was conducting research and was interested in the pulse rate of skiers. One scientist from the company wanted to know if skiing would lead to a reduction in an individual's pulse rate. In order to test this hypothesis, the scientist found 8 non-skiers who agreed to being a one month long all paid for skiing program. At the end of the month their pulse rates were determined and compared using earlier values throughout the tests and from before.

Subject	1	2	3	4	5	6	7	8
Pule before the program	74	86	98	102	78	84	79	70
Pulse after the program	70	85	90	107	71	80	69	74

a.) State the hypotheses.  

b.) Calculate the test statistic, state the degrees of freedom and approximate the p-value.  

c.) Would you reject H₀ or fail to reject H₀ at a 5% level of significance?

d.) What can you conclude about the effect that one month of skiing has on pulse rate?

Answer 1