statistics (hypothesis testing)

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example - Table 1

Data Hypothesis Output
1.81 1.84 t-Test: Two-Sample Assuming Unequal Variances
1.85 1.84
1.84 Variable 1 Variable 2
1.89 Mean 1.8508333333 1.84
1.82 Variance 0.0005537879 0
1.86 Observations 12 2
1.86 Hypothesized Mean Difference 0
1.87 df 11
1.88 t Stat 1.5947073886 =test t
1.83 P(T<=t) one-tail 0.0695422023
1.85 t Critical one-tail 1.363430318
1.85 P(T<=t) two-tail 0.1390844046 =p-value
t Critical two-tail 1.7958848187 =+/-tc for Alpha=0.1 two-tailed test

9.15 - Table 1

1200
1090
1175
1280
1080
1400
1275
1287
1201
1225
1387

9.16 - Table 1

9.16.
Weight of machine part, lb
8.1
8.4
8.3
8.2
8.5
8.6
8.4
8.3
8.4
8.2
8.8
8.2
8.2
8.3
8.1
8.3
8.4
8.5
8.5
8.7

9.18 - Table 1

9.18 ---price $/gallon
3.87
3.8
3.76
3.75
3.81
3.89
3.83
3.67
3.83
3.74
3.76
3.79
3.87
3.74
3.74
3.8
3.8
3.69
3.65
3.67
3.97
3.84
3.95
3.95
3.7

9.64 - Table 1

19
22
17
19
32
24
16
18
27
17
24
19
23
27
28
19
17
18
26
22
19
15
18
25
23
19
26
21
16
21
24

Distribution templates - Table

1-tail
2-tail
1-tail