1 3.80: The dataset UCDavis 2 includes grade point average \(G P A\) and answers to the question: "Where do you typically sit in a classroom (circle one): Front, Middle, Back." The answer to this question is coded as F, M, B for the variable Seat. Assuming these students represent all college students, test whether there is a difference in mea GPA for students who sit in the front versus the back of the classroom.

1 6.42: At a private university in southern California, 334 freshman (197 males and 137 females) reported their frequency of drinking alcoholic beverages and alsu completed a test of personality and psychological characteristics (Ichimaya and Kruse, 1998). One response variable was the score on a l2-item test of conscientiousness for which a high score indicates dependability. Summary statistics for three groups defined by frequency of binge drinking (five or more drinks in one session] are as follows:

1. Write null and alternative hypotheses for comparing the mean conscientiousness score for the three groups. Write the hypotheses in words, and also write the null hypothesis using proper statistical notation.
2. What do you think are the populations to which the results of an analysis of variance F-test would apply?
3. The researchers did a one-way analysis of variance and reported the results as F=5.95, p<.0005. What does this result indicate about the null and

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