In Example 4 ( Section 2 ), we used the two-sample t -statistic to compare the mean

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In Example 4 ( Section 2 ), we used the two-sample t -statistic to compare the mean reading scores of two groups of “slow learners” who had been taught to read by two different methods. The data are repeated in Table 10 for convenience. The use of the t -statistic was based on the assumption that the population variances of the test scores were equal for the two methods. Conduct a test of hypothesis to check this assumption at a = .10.

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Statistics

ISBN: 9781292022659

12th International Edition

Authors: James T Mcclave, Terry Sincich

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