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In a test given to two groups of students to marks were as follows: First group: 9,...

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Statistics

In a test given to two groups of students to marks were asfollows:

First group: 9, 11, 13, 11, 15, 9, 12, 14

Second group: 10, 12, 10, 14, 9, 8, 10

Examine the significance of differenceμ1-μ2 under theassumption on the samples are drawn from normal population withσ12=σ22.

Answer & Explanation Solved by verified expert
3.7 Ratings (312 Votes)
First groupSample size 8Mean 911131115912148 1175Standard deviation 2188Second groupSample size 7Mean 1012101498107 10429Standard deviation 1988The null hypothesis and alternate    See Answer
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