How do you find the confidence interval for the mean difference?
How do you find the confidence interval for the mean difference? Thus, the difference in sample means is 0.1, and the upper end of the confidence interval is 0.1 + 0.1085 = 0.2085 while the lower end is 0.1 – 0.1085 = –0.0085….In This Article. z*-values for Various Confidence Levels Confidence Level z*-value 80% 1.28 […]