AnswersProbability and Statistics with Applications Honors Sem-2-FL-1210300 2024-2025Estimating the Mean DifferenceQuestion 6
6
QuizMultiple Choice
Estimating the Mean Difference
Question 6 • Probability and Statistics with Applications Honors Sem-2-FL-1210300 (2024-2025)
A doctor would like to estimate the mean difference in height of pairs of identical twins. The doctor randomly selects 8 pairs of identical twins and determines the current height, in inches, of each twin. The data are displayed in the table.A 95% confidence interval for the mean difference (twin 1 – twin 2) in height is (–0.823, 0.573). Based on the confidence interval, is it reasonable to claim there is no difference in the heights of twins?
Answer
A
No, 0 is contained in the 95% confidence interval.B
Yes, 0 is contained in the 95% confidence interval.C
No, the 95% confidence interval contains positive numbers.D
Yes, the 95% confidence interval contains negative numbers.