Question

Determine the point estimate of the population mean and margin of error for the confidence interval. 

Lower bound is 19, upper bound is 27. 

The point estimate of the population mean is _______ . 

The margin of error for the confidence interval is _______ .

Answer 1

Point estimate = (upper bound + lower bound)/2

= (19 + 27)/2

= 23

Margin of error = (upper bound - lower bound)/2

= (27 - 19)/2

= 4