Discussion:
Q: Here are heart rates for a sample of 30 students before and after a class break. At alpha =.05, was there a significant diffeence 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) Find the p-value and interpret it.
Hear Rate Before and After Class Break
Student Before After
1 60 62
2 70 76
3 77 78
4 80 83
5 82 82
6 82 83
7 41 66
8 65 63
9 58 60
10 50 54
11 82 93
12 56 55
13 71 67
14 67 68
15 66 75
16 70 64
17 69 66
18 64 69
19 70 73
20 59 58
21 62 65
22 66 68
23 81 77
24 56 57
25 64 62
26 78 79
27 75 74
28 66 67
29 59 63
30 98 82