For the Statements Below,which Is(are)TRUE for Confidence Intervals

For the statements below,which is(are) TRUE for confidence intervals?
I As the percentage confidence increases,the confidence interval range decreases.
II Confidence intervals are calculated using the calculated mean and standard deviation of a set of n measurements;and the results of the F test.
III The 95% confidence interval will include the true population mean for 95% of the sets of n measurements.

A) I only
B) II only
C) I and III
D) I and II
E) III only

Correct Answer:

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