Question: Historically, the average score for QM520 test #1 has been 86 with a standard deviation of 3. If there are 17 students in the class,

Historically, the average score for QM520 test #1 has been 86 with a standard deviation of 3. If there are 17 students in the class, this semester, compute the z score that allows computing the probability associated with the sample mean score being less that 67.

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