Using a random sample of 4,000 students, you compute a 95% confidence interval to estimate the mean calories consumed by 8th graders. You decide to compute another 95% confidence interval using a different sample, this time with only 1,000 students. What change would you expect from the first confidence interval to the second? Select one: a. The margin of error will be 4 times as wide b. The margin of error will be 2 times as wide c. The margin of error will decrease d. The confidence interval will be smaller