It is of interest to know how aspects of exercise capacity might depend on the t

Question

It is of interest to know how aspects of exercise capacity might depend on the tempera- ture of the environment. Data were collected on body mass loss (kg) after exercising on a stationary bike in three ambient temperature (Cold, Neutral, Hot) and the analysis lead to the following ANOVA Table B=as, factor (Subject) A-temperatures > >Prob-aov(loss (kg) A+B) Df Sum Sq Mean Sq F value Pr(>F) 2 2.067 1.0337 8.770 0.00268 8 2.985 0.3731 3.166 0.02375 Residuals 16 1.886 0.1179 Use the above scenario and output to answer questions 13-14 21. The null hypothesis of interest here is a. The true average body mass losses for all the subjects are the same, b. The true average body mass losses for all the subjects are the same, assuming the interaction is zero c. The true average body mass losses for the three temperature levels are the same, d. The true average body mass losses for the three temperature levels are the same, assuming there is no interaction, e. All interactions are zero 22. According to the ANOVA Table, the temperature affects the body mass loss ( 01) because, a. the F statistic for B is significant, b. the F statistic for A is significant, c. MSA is large, d. MSB is large, e. MSE is small

Explanation / Answer

21)
option C) is correct

22)
p-value for Factor A = 0.00268 < 0.01
hence significant
option b) is correct

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