To determine the point estimate of the population mean from the given confidence interval, you can use the following formula:
Point Estimate (Mean) = (Lower Bound + Upper Bound) / 2
In this case, the lower bound is 17 and the upper bound is 25. Plugging in these values:
Point Estimate = (17 + 25) / 2
Point Estimate = 42 / 2
Point Estimate = 21
Therefore, the point estimate of the population mean is 21.
Additionally, if you need to find the margin of error for the confidence interval, you can use the following formula:
Margin of Error = (Upper Bound – Lower Bound) / 2
Substituting the lower and upper bounds:
Margin of Error = (25 – 17) / 2
Margin of Error = 8 / 2
Margin of Error = 4
In summary, from the confidence interval, the point estimate of the population mean is 21, and the margin of error is 4.