Question: Scores on a reading comprehension test were recorded for two groups of nine students enrolled in a remedial reading class. One group read each test passage aloud before answering the comprehension questions, the other read silently. The resulting test scores are given in Table 1 below.

Does the data support the researcher’s contention that the mean comprehension score will differ for the two reading methods. Test at the 5% level of significance using a two-tailed test.

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