National UniversityBST 322 In a pilot study a new drug was evaluated to determine whether it had any effect on (i

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National UniversityBST 322

In a pilot study a new drug was evaluated to determine whether it had any effect on (i.e., either increased or decreased) resting heart rates (HR) of patients. The following data were recorded:

Subject #	Resting HR
001	72
002	88
003	71
004	87
005	64
006	77
007	79
008	59
009	66
010	68
011	78
012	89

 

013	91
014	81
015	77
016	75
017	69

 

a. Given that the average resting HR of the general population for this study is 72, use StatCrunch to perform the appropriate t test. What is the value of t?

b. Using an alpha of 0.05, is the t statistic significant? Why?

c. Write one or two sentences (in plain English/non-statistical terms) that could be used to report the results obtained for the t-test.

d. What are the confidence limits for a 95% confidence interval here and what do they mean for this patient group?