Determine the point estimate of the population mean and margin of error for the confidence interval. lower bound is 16, upper bound is 28 in statcrunch

The point estimate of the population mean and margin of error for the confidence interval is 22 and 6 respectively.

Step-by-step explanation:

The confidence interval for population mean is given by :-

, where is the sample mean and E is the margin of error.

Given : Lower bound is 16 and upper bound is 28

Then, and

Adding both equations , we get

Put in first equation, we get

Hence, the point estimate of the population mean and margin of error for the confidence interval is 22 and 6 respectively.

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answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb