Levels of insoluble ash (gm/kg) were measured in a sample of small (0.3 gm) aliquots of dried and ground alfalfa.6 Below are three confidence intervals for the mean: One is a 95% confidence interval, one is a 90% confidence interval, and the other is an 85% confidence interval. Without doing any calculations, match the intervals with the confidence levels and explain how you determined which interval goes with which level. Confidence levels: 95% 90% 85%
Intervals (in scrambled order):
(8.16,10.88) (8.38,10.66) (7.75,11.29)