The article “Impacts of On-Campus and Off- Campus Work on First-Year Cognitive Outcomes” (Journal of College Student Development : 364– 370) reported on a study in which y = spring math comprehension score was regressed against x1 = previous fall test score, x2 = previous fall academic motivation, x3 = age, x4 = number of credit hours, x5 = residence (1 if on campus, 0 otherwise), x6 = hours worked on campus, and x7 = hours worked off campus. The sample size was n = 210, and R2 = .543. Test to see whether there is a useful linear relationship between y and at least one of the predictors.
Answer to relevant QuestionsIs the model fit in Exercise 14.16 useful? Carry out a test using a significance level of .10. This exercise requires the use of a computer package. The article “Vital Dimensions in Volume Perception: Can the Eye Fool the Stomach?” (Journal of Marketing Research : 313–326) gave the data below on dimensions ...The accompanying data resulted from a study of the relationship between y = brightness of finished paper and the independent variables x1 = hydrogen peroxide (% by weight), x2 = sodium hydroxide (% by weight), x3 = silicate ...Give as much information as you can about the P-value for an upper-tailed F test in each of the following situations. a. df1 = 4, df2 = 15, F = 5.37 b. df1 = 4, df2 = 15, F = 1.90 c. df1 = 4, df2 = 15, F = 4.89 d. df1 = 3, ...The authors of the paper “Beyond the Shooter Game: Examining Presence and Hostile Outcomes among Male Game Players” (Communication Research : 448–466) studied how video-game content might influence attitudes and ...
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