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In addition to monitoring weight gain, food consumed, and activity level, the study measured stress levels...

In addition to monitoring weight gain, food consumed, and activity level, the study measured stress levels in the mice by measuring corticosterone levels in the blood (higher levels indicate more stress.) Conditions for ANOVA are met and computer output for corticosterone levels for each of the three light conditions is shown. Level N Mean StDev DM LD LL 10 73.40 67.49 8 70.02 54.15 9 50.83 42.22 One-way ANOVA: Corticosterone versus Light SourceDF SS MS F P Light 2 2713 1357 0.43 0.656 Error 24 75782 3158 Total 26 78495 (a) What is the conclusion of the analysis of variance test? (b) One group of mice in the sample appears to have very different corticosterone levels than the other two. Which group is different? What aspect of the data explains why the ANOVA test does not find this difference significant? How is this aspect reflected in both the summary statistics and the ANOVA table?

math   Statistics-And-Probability   
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