Question: I need help solving the following problems..... Determine the point estimate of the population mean and margin of error for the confidence interval. Lower bound

I need help solving the following problems.....

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

Lower bound is 20

upper bound is 24

The point estimate of the population mean is

.

The margin of error for the confidence interval is

and

Compute the critical value z Subscript alpha divided by 2

z/2 that corresponds to a 89

89% level of confidence.

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