A pysics lab instructor wants to estimate the time required

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Reference no: EM13628684

A pysics lab instructor wants to estimate the time required for physic students to complete a required experiment. From a previous study she found the population standard deviation to be 16 mins. How large a sample is required to be 90% confident that the point estimate is within 5 min of the population mean time?

Reference no: EM13628684

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