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Suppose a study of n=47 students was conducted asking their weeknight study time. The mean response was 137 min. with an assumed KNOWN standard deviation

Suppose a study of n=47 students was conducted asking their weeknight study time. The mean response was 137 min. with an assumed KNOWN standard deviation of 65 min. The hypothesis of interest is whether the mean study time is GREATER than 120 min. What is the decision with alpha=0.01

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