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A study was conducted in order to estimate μ, the mean number of weekly hours that U.S. adults use computers at home. Suppose a random sample of 81 U.S. adults gives a mean weekly computer usage time of 8.5 hours and that from prior studies, the population standard deviation is assumed to be σ = 3.6 hours.

Question 2
Select one answer.
10 points
Based on this information, what would be the point estimate for μ?
81
8.5
3.6
None of the above.

  • statistics -

    The only indication you have for the mean is what?

  • statistics -

    8.5

  • statistics -

    None of the above

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