Question

what statistical value is used to determine the centre of a confidence interval?

A. Sample Variance

B. Sample standard Deviation

C.Population standard deviation

D.Sample mean

E.Population mean

Answer 1

Solution :-

statistical value is used to determine the centre of a confidence interval is,

Ans = Sample Mean

Option 'D ' is correct.

At the center of a confidence interval is the sample statistic, such as a sample mean or sample proportion. This is known as the point estimate. The width of the confidence interval is determined by the margin of error. The margin of error is the amount that is subtracted from and added to the point estimate to construct the confidence interval.