Aug weight	November weight	weight diff	Aug BFI	Nov BF	BFI diff
113.2	113.4	0.2	20.7	19.4	-1.3
116.6	116.4	-0.2	21.5	23.2	1.7
128.4	127.6	-0.8	23.4	25.4	2
128.6	129.8	1.2	10	11.1	1.1
132	134.8	2.8	11.2	11.5	0.3
138.6	137.8	-0.8	12.7	11.1	-1.6
139	140.8	1.8	12.7	14.1	1.4
161	160.6	-0.4	36.8	37.8	1
162.2	162.8	0.6	12.8	14	1.2
118.6	116.8	-1.8	22.8	24.9	2.1
123.6	118	-5.6	23.9	23.2	-0.7
136	134.4	-1.6	13	13.6	0.6
140	141.6	1.6	29.2	28.6	-0.6
141.4	143.6	2.2	32.7	31.1	-1.6
146.4	146.2	-0.2	30.1	30	-0.1
154.2	150.6	-3.6	32.5	34.1	1.6
157.2	153.6	-3.6	15.1	15.7	0.6
147.6	156.6	9	16.4	14.9	-1.5
156	157.8	1.8	16.5	17.1	0.6
166.6	162.6	-4	36.7	36	-0.7
164.2	163.4	-0.8	36.7	36.3	-0.4
161	163.8	2.8	20.6	20.6	0
160	164.2	4.2	40.9	41	0.1
170	166.2	-3.8	22.1	22.3	0.2
172.8	171	-1.8	20.1	19.5	-0.6
171.4	173.8	2.4	24.5	25.8	1.3
190.8	189.6	-1.2	39.9	38.6	-1.3
188.6	198.8	10.2	20.7	22.8	2.1
210	199.8	-10.2	35.2	34.1	-1.1
249	242	-7	33.4	32.1	-1.3
261.6	255.6	-6	43.3	43.6	0.3
100.8	98.4	-2.4	15	11.9	-3.1
188.6	186.4	-2.2	19.6	20.8	1.2
200.8	203.4	2.6	14	13.4	-0.6
153.2	152.8	-0.4	28.3	29.7	1.4
210.2	212.6	2.4
	p-value	0.6
	sample size	36		sample size	35
	sample mean	-0.35		sample mean	0.12
	sample stdev	3.96		sample stdev	1.27
	stand. err. se	0.66		stand. err. se	0.22
	tcritical	2.03		tcritical	2.03
	margin error E	1.34		margin error E	0.44
	lower bound	-1.69		lower bound	-0.32
	upper bound	0.99		upper bound	0.56
	t	-0.5307		t	0.5702
	p-value	0.5990		p-value	0.5723
	max c	0.4010		max c	0.4277
Null hypothesis. H0: µdifference = 0
Alternate hypothesis. H1: µdifference ≠ 0
Result: in both cases we fail to reject the null hypothesis. Case I as depicted in the
text holds: there is no statistically significant difference in the means.
		weight diff	Aug BFI
	lower bound	-1.69	-0.32
	upper bound	0.99	0.56
	sample mean	-0.35	0.12