suppose a confidence interval is 9.65<mean<11.35. Find the best point estimate of the population mean, find...
suppose a confidence interval is 9.65<mean<11.35. Find the best point estimate of the population mean, find the error estimate E.
Homework Answers
Solution :
Given that,
Lower confidence interval = 9.65
Upper confidence interval = 11.35
=
(Lower confidence interval + Upper confidence interval ) / 2
= (9.65 + 11.35) / 2
= 21 / 2 = 10.5
= 10.5
Point estimate = 10.5
Margin of error = E = Upper confidence interval -
= 11.35 - 10.5 = 0.85
error estimate E = 0.85
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