Posted by **Gary** on Monday, July 5, 2010 at 1:07pm.

Here are heart rates for a sample of 30 students before and after a class break. At α = .05, was

there a significant difference in the mean heart rate? (a) State the hypotheses. (b) State the decision

rule and sketch it. (c) Find the test statistic. (d) Make a decision. (e) Estimate the p-value and

interpret it

Student Before After Student Before After

1 60 62 16 70 64

2 70 76 17 69 66

3 77 78 18 64 69

4 80 83 19 70 73

5 82 82 20 59 58

6 82 83 21 62 65

7 41 66 22 66 68

8 65 63 23 81 77

9 58 60 24 56 57

10 50 54 25 64 62

11 82 93 26 78 79

12 56 55 27 75 74

13 71 67 28 66 67

14 67 68 29 59 63

15 66 75 30 98 82

- Research and Statistics -
**qajq```**, Friday, June 27, 2014 at 5:08am
dlpjd

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