Researchers recruited undergraduate seniors from two universities to see if there was a difference in age. Participants were asked their age and the data were as summarized in the following table: Sample Size Sample Mean Sample SD Class A Age 24 Class B Age 18 21.08 20.11 1.18 1.32 Suppose the data instead turned out like this: Sample Size Sample Mean Sample SD Class A Age 24 22.10 1.18 Class B Age 18 20.11 1.32 What would be the primary change to the confidence interval? The width would be narrower. O The midpoint would be smaller. O The width would be longer. O The confidence interval wouldn't change. O The midpoint would be larger.