1. Suppose we use sample data to construct a 90% confidence interval for the true difference in population proportions, and the interval supports that there is a difference in the population proportions. If we use the same sample data to construct a 95% confidence interval for the true difference in population proportions, what can we say about the resulting interval? A. The new interval would still support that there is a difference in the population proportions. B. The new interval would now support that there is no difference in the population proportions. C. Intervals cannot be used to determine if a difference in the population proportions exists. D. More information is needed. 2. Suppose we use sample data to construct a 98% confidence interval for a population mean. Which of the following would result in a smaller margin of error? (Select All That Apply) A. Smaller sample size B. Smaller sample standard deviation C. Less confidence D. Larger sample size E. Larger sample standard deviation F. More confidence 3. Suppose you construct a preliminary confidence interval for a population proportion using data drawn from a random sample. The resulting interval has a margin of error of 0.096. If you decide to double your sample size, what would be the approximate value of the margin of error? A. 0.048 B. 0.068 C. 0.136 D. 0.192