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. decrease; narrower
c. increase; wider
d. increase; narrower

Option C) Increase; wider

Step-by-step explanation:

When constructing a confidence interval,

Margin of error =

As the confidence level increases, the value for critical value increases and hence, the margin of error increases.

Confidence interval =

As the margin of error increases, the confidence interval will be wider.

what "following statement"?

step-by-step explanation: