Question 13 of 13
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This question: 1
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Determine the point estimate of the population mean and margin of error for the confidence interval. Lower bound is 22, upper bound is 28.
The point estimate of the population mean is $\square$.
The margin of error for the confidence interval is $\square$.
Answer
Final Answer: The point estimate of the population mean is \(\boxed{25.0}\). The margin of error for the confidence interval is \(\boxed{3.0}\).
Step 1 ：Given the lower bound of the confidence interval is 22 and the upper bound is 28.
Step 2 ：The point estimate of the population mean is the average of the lower and upper bounds of the confidence interval, which is \((22+28)/2 = 25.0\).
Step 3 ：The margin of error for the confidence interval is the difference between the point estimate and one of the bounds, which is \(25.0 - 22 = 3.0\).
Step 4 ：Final Answer: The point estimate of the population mean is \(\boxed{25.0}\). The margin of error for the confidence interval is \(\boxed{3.0}\).
