Statistics for The Behavioral Sciences (MindTap Course List)

10th Edition

ISBN: 9781305504912

Author: Frederick J Gravetter, Larry B. Wallnau

Publisher: Cengage Learning

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Textbook Question

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Chapter 12, Problem 16P

Several factors influence the size of the F-ratio. For each of the following, indicate whether it would influence the numerator or the denominator of the F-ratio, and indicate whether the size of the F-ratio would increase or decrease.

a. Increase the differences between the sample means.

b. Increase the sample variances.

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Chapter 12 Solutions

Statistics for The Behavioral Sciences (MindTap Course List)

Ch. 12 - Explain why the F-ratio is expected to be near...Ch. 12 - Describe the similarities between an F-ratio and a...Ch. 12 - Why should you use ANOVA instead of several ttests...Ch. 12 - Calculate SStotal , SSbetween , and SSwithin for...Ch. 12 - A researcher uses an ANOVA to compare three...Ch. 12 - A researcher reports an F-ratio with dfbetween=2...Ch. 12 - A researcher reports an F-ratio with df=2,27 from...Ch. 12 - A research report from an independent-measures...Ch. 12 - Treatment I II III n=10 n=10 n=10 SS=63 SS=66...Ch. 12 - A researcher conducts an experiment comparing four...

Ch. 12 - The following summary table presents the results...Ch. 12 - A developmental psychologist is examining the...Ch. 12 - The following data were obtained from an...Ch. 12 - The following data were obtained from an...Ch. 12 - A research study comparing three treatment...Ch. 12 - Several factors influence the size of the F-ratio....Ch. 12 - A researcher used ANOVA and computed and F-ration...Ch. 12 - The following data were obtained from an...Ch. 12 - For the preceding problem you should find that...Ch. 12 - The following data summarize the results from an...Ch. 12 - To create the following data we started with the...Ch. 12 - The following values are from an independent-...Ch. 12 - An ANOVA produces an F-ratio with df=1,34 . Could...Ch. 12 - The following scores are from an...

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