STAT 302 Midterm: STAT 302 UW Madison sol11
Document Summary
8. 47 body mass gain (graded for completeness) computer output showing body mass gain (in grams) for the mice after four weeks in each of the three light conditions is shown in the book, along with relevant anova output. This is a two-tail test so the p-value is twice the area above 1. 60 in a t-distribution with df = 25. We see that the p-value is 2(0. 061) = 0. 122. We don?t nd convincing evidence for a di erence in mean weight gain between the dim light condition and the light/dark condition. This is a two-tail test so the p-value is twice the area below -2. 69 in a t-distribution with df = 25. We see that the p-value is 2(0. 0063) = 0. 0126. At a 5% level, we do nd a di erence in mean weight gain between the dim light condition and the bright light condition, with higher mean weight gain in the bright light condition.
