Examination Times Narrative
the Time Necessary to Complete an Examination $\mu$

question 186

Essay

Examination Times Narrative
The time necessary to complete an examination has a mean of 45 minutes and a standard deviation of 4 minutes. The average time necessary for 64 randomly selected students is computed.
-Refer to Examination Times Narrative. If the sample mean, , is actually 50 minutes, what can be said about the claim that $\mu$ = 52?

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