Heart rate before and after exercise solutions

	A	B	C	D	E	F	G	H
1			MWF 8:00 Resting heart rate	MWF 8:00 Post-exercise heart rate			MWF 9:00 Resting heart rate	MWF 9:00 Post-exercise heart rate

2			52	88			50	80
3			87	140			62	104
4			75	100			70	140
5			58	97			70	120
6			60	80			55	120
7			60	80			58	68
8			61	80			81	84
9			78	92			76	82
10			80	100			70	80
11			68	84			60	80
12			51	104			96	88
13			76	96			76	124
14			63	100			65	76
15			71	100			73	96
16			59	68
17			91	116
18			54	132
19			80	112
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21	1	n	18	18	1	n	14	14
22	2	sample mean x̅	68	98.278	2	sample mean x̅	68.714	95.857
23	3	sample standard deviation sx	12.185	18.310	3	sample standard deviation sx	11.809	22.000
24	4	difference in the sample means	30.278		4	difference in the sample means	27.143
25	5	potential effect size	2.485		5	potential effect size	2.299
26	6	p-value	0.0000008787447142		6	p-value	0.001059204278
27	7	surprising?	yes		7	surprising?	yes
28	8	hypothesis test result	reject the null hyp of no difference in the sample means		8	hypothesis test result	reject the null hyp of no difference in the sample means
29	9	is the difference significant?	yes, significant.		9	is the difference significant?	yes, significant.
30	10	does exercise increase HR?	yes, significantly increases		10	does exercise increase HR?	yes, significantly increases
31
32			MWF 8:00 Resting heart rate	MWF 8:00 Post-exercise heart rate		MWF 9:00 Resting heart rate	MWF 9:00 Post-exercise heart rate
33		lower	61.94061627	89.172		61.896	83.155
34		mean	68	98.278		68.714	95.857
35		mean	68	98.278		68.714	95.857
36		upper	74.05938373	107.383		75.533	108.559
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