Question

In a recent study of 35 ninth grade students. the mean number of hours per week that they played video games was 16.6. the standard deviation of the population was 2.8. find the best point estimate of the population mean

Answer 1

A point estimate of the mean is a number that is used to approximate the true value of said population parameter.
To find the point estimate of the mean we will use the associated sample parameter X-bar.

Since Xbar is an unbiased estimator of μ, then:

μ_X-bar = μ.

X-bar = 16.6
So:

The estimate of population mean = X-bar = 16.6