The figure shows side-by-side boxplots of the number of hours per week that UCLA students spent listening to music. Minitab output for ANOVA is also shown. Check whether the conditions for ANOVA hold. If not, state which ones fail and why.
Answer to relevant QuestionsJohn Carlson and Paul McMurray collected data on baseball player run-times. Players were required to run 50 yards and were timed in seconds (pitchers did not have to run). Assume that the distribution of each population ...Tomato Plants and Colored Light Jennifer Brogan, a biology student who was taking a statistics class, exposed similar tomato plants to different colors of light. The average growth rates (in millimeters per week) are given ...A random sample of students was studied. Whether the student chose to sit in the front, middle, or back row in a college class was recorded, along with the person's GPA. Test the hypothesis that GPA is associated with choice ...Suppose you collect data on GPAs by classroom row in which the student chose to sit, and that there are four rows. Suppose you do multiple two-sample t-tests to compare the mean GPA of the rows, and discover that the p-value ...Read the excerpt from the following abstract from a controlled experiment, and then: a. Identify the treatment and response variables. b. Restate the conclusion of the study in terms of a cause-and-effect conclusion. "We ...
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