Which of the following is NOT true: Select one: a. If population parameters are

Question

Which of the following is NOT true: Select one: a. If population parameters are not known, and sample size is small, a t distribution should be used to construct a 95% confidence interval. b. A 90% confidence interval is wider than a 95% confidence interval C. A 99% confidence interval is wider than a 95% confidence interval d. If population parameters are known, a Z distribution can be used to construct a 95% confidence interval e. Increasing the sample size will result in a narrower confidence interval

Explanation / Answer

Option B Is false statement , in given statements remaining all are true

A 99 percent confidence interval would be wider than a 95 percent confidence interval (for example, plus or minus 4.5 percent instead of 3.5 percent)

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