a . What would happen to the width of a confidence interval [CI] if the largest outlier is removed from the dataset?

b. What would happen to the width of a confidence interval [CI] if the confidence level is changed from 99% to 90%?

c .What would happen to the width of a confidence interval [CI] for a mean if 10 is subtracted from each observation, changing the mean from 35 to 25?

possible answers

a.) the Ci becomes more wide

b.) the ci stays the same width

c.) the ci becomes less wide

d.) the effect on width is unknown