F-Test Two-Sample for Variances Subject ID Height Mean 9.9 68.85 Variance 39.04210526 35.0815789 Observations 20 20...
| F-Test Two-Sample for Variances | ||
| Subject ID | Height | |
| Mean | 9.9 | 68.85 |
| Variance | 39.04210526 | 35.0815789 |
| Observations | 20 | 20 |
| df | 19 | 19 |
| F | 1.112894757 | |
| P(F<=f) one-tail | 0.40903666 | |
| F Critical one-tail | 2.168251601 | |
Based on your results:
If your f-value is < critical value, choose t-test assuming equal variances
If your f-value is > critical value, choose t-test assuming unequal variances
Homework Answers
The F-Test Two-Sample for Variances tool tests the null hypothesis that two samples come from two independent populations having the equal variances.
For the above problem,
F (1.112894757) < F crtical (2.168251601)
Ho is Accepted.
Therefore, for the above test 1st statement is correct that is choose t-test assuming equal variances.
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F-Test Two-Sample for Variances
Subject ID
Height
Mean
9.9
68.85
Variance
39.04210526
35.0815789
Observations
20
20...
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