Paired marble mass difference detection: t-test in-class analysis

	A	B	C	E	F	G	H
1	Light (g)	Heavy (g)	Paired difference	Statistics	Light (g)	Heavy (g)	Paired difference
2	5.2	5	-0.2	sample size n	18	18
3	4.6	4.7	0.1	correct			10
4	5.5	5.2	-0.3	incorrect			7
5	5.4	5.2	-0.2	undecidable			1
6	4.9	5	0.1	sample mean	5.1000	5.1944	0.0944
7	4.9	5.2	0.3	sample standard deviation sx	0.2567	0.3115	0.3096
8	5.1	5.5	0.4	p-value	0.21289
9	5.1	5	-0.1	p-value < chosen alpha of 0.05?	no
10	5.3	5.1	-0.2	surprising?	not surprising
11	4.8	4.5	-0.3	reject or fail to reject null?	fail to reject null
12	4.9	5.3	0.4	was a difference detected?	no
13	5.3	5.5	0.2
14	5.4	5.5	0.1	pooled standard deviation	0.2854019067
15	5.3	5.6	0.3	effect size	0.3309173563
16	5.2	5.5	0.3
17	4.7	5.6	0.9
18	5	4.9	-0.1
19	5.2	5.2	0
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