Homework Sourse95 confident interval SolutionStep1 x bar 14 and standard a
95% confident interval
Solution
Step1: x bar =14 and standard a deviation = 0.66/sqrt(6) = 0.2694=0.53
Step2: standard Error =zc *sd/sqrt(n)
=1.96*0.2694
=0.53
Step3: 95% CI 14+/- 0.53 I.e We are 95%confident that true mean height increases in men aft 3days bed rest will be between 13.47mm and 13.53 mm
