Question: In Example 9.8, we tested the hypothesis that the mean numbers of ideas generated were the same for groups with and without a moderator. This

In Example 9.8, we tested the hypothesis that the mean numbers of ideas generated were the same for groups with and without a moderator. This test was based on the assumption that the two population variances were equal. Test this assumption against the alternative that the population variance is higher for groups with a moderator.

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