A sample of 32 students took a class designed to improve their SAT math scores. Following are

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A sample of 32 students took a class designed to improve their SAT math scores. Following are their scores before and after the class.image text in transcribed

Can you conclude that the mean increase in score is less than 15 points?

a. State the null and alternate hypotheses.

b. Compute the test statistic.

c. State a conclusion. Use the α = 0.05 level of significance.

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Elementary Statistics

ISBN: 9781259969454

3rd Edition

Authors: William Navidi, Barry Monk

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