Question

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


Determine the point estimate of the population mean and margin of error for the confidence interval with lower bound  29  and upper bound:  45 .

Homework Answers

Answer #1

Solution

Given the confidence interval for the population mean   is (29,45)

i.e. upper bound = 45

lower bound = 29

We know that the confidence interval is nothing but

point estimate margin of the error

So,

upper bound = point estimate + margin of error

lower bound = point estimate - margin of error

Solving these two equations , we get

point estimate =   

= (45 + 29)/2

= 37

Margin of error =

= (45 - 29)/2

= 8

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