In Order to Estimate the Average Time Spent Per Student

question 66

Multiple Choice

In order to estimate the average time spent per student on the computer terminals at a local university, data were collected for a sample of 81 business students over a one-week period.Assume the population standard deviation is 1.8 hours.The standard error of the mean is

• A) 7.50.
• B) .39.
• C) 2.00.
• D) .20.

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