Make a confidence interval wider or narrower

Reference no: EM131796659

Changes in Confidence

Interval State whether each of the following changes would make a confidence interval wider or narrower. (Assume that nothing else changes.)

a. Changing from an 80% level of confidence to an 85% level of confidence.

b. Changing from a sample size of 25 to a sample size of 40.

c. Changing from a standard deviation of 500 grams to a standard deviation of 750 grams.

Reference no: EM131796659

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