A: 32, 22.6, 27.2, 30.3, 23.8, 28.1, 25, 23.1, 30.9 B: 28.7, 26.1, 34.3, 31.3, 30, 27.7 a) Test to see if the variances are the same (the ideas are in section 9.3, but you can use 2-SampFTest in the calculator): give the null and alternate hypotheses; then the test statistic and critical value or p-value; finally decide if you accept or reject this null hypothesis at the 5% level. b) Now do the same for the means of the two groups using the appropriate test.

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A: Output:

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A:

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A:

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A: Reliability refers to the consistency in test outcomes of a measure under similar conditions.

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A: Main Kikuyu kenya science 9 10 15 7 9 11 3 11 12 6 10 9 5 7 10 8 6     8

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A:

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