Question: Complete the statement by filling in the blanks: When constructing a confidence interval, if the level of confidence increases, the margin of error must _____

Complete the statement by filling in the blanks: When constructing a confidence interval, if the level of confidence increases, the margin of error must _____ and the confidence interval will be _____.

Select one:

a. Decrease; wider

b. Increase; narrower

c. Decrease; narrower

d. Increase; wider

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