Question: a) Increasing the level of confidence will increase the width of the interval. b) Increasing the sample size will increase the width of the interval.

a) Increasing the level of confidence will increase the width of the interval. b) Increasing the sample size will increase the width of the interval. c) For a given sample size, higher confidence means a smaller margin of error. d) For a given confidence level, reducing the margin of error by 1/3 will require a sample size that is 3 times large. TRUE FALSE

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