Question: Refer to Exercise 5.24. Suppose a random sample of 100 students is selected yielding y-bar = 542 and s = 76. Is there sufficient evidence

Refer to Exercise 5.24. Suppose a random sample of 100 students is selected yielding y-bar = 542 and s = 76. Is there sufficient evidence to conclude that the mean mathematics achievement level has been increased? Explain.

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