Question: A standard intelligence examination has been given to 25 students and the results come out with a standard deviation of 7. If 25 students taught

A standard intelligence examination has been given to 25 students and the results come out with a standard deviation of 7. If 25 students taught with special emphasis on reading skill, obtain grades with standard deviation of 5, is there reason to believe that the special emphasis changes the variance results on the intelligence examination. Calculate the rejection region and test statistic for this test for =0.10

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