Mathematics, 11.01.2020 05:31 kayla2945

Aresearch firm wants to compute an interval estimate with 90% confidence for the mean time to complete an employment test. assuming a population standard deviation of three hours, what is the required sample size if the error should be less than a half hour? select one: a. 196 b. 98 c. 10 d. 16

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Aresearch firm wants to compute an interval estimate with 90% confidence for the mean time to comple...