Question

As one increase the size of the sample used to construct a confidence interval, the width of the confidence interval

Group of answer choices

decreases

shifts to the left

remains the same

increases

Answer 1

Solution :-

As one increase the size of the sample used to construct a confidence interval, the width of the confidence interval

decreases.

Ans is decreases.

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Increasing the sample size decreases the width of confidence intervals, because it decreases the standard error.

Increasing the sample size causes the error bound to decrease, making the confidence interval narrower. Decreasing the sample size causes the error bound to increase, making the confidence interval wider.