Statistics for the Behavioral Sciences, Loose-leaf Version
Statistics for the Behavioral Sciences, Loose-leaf Version
10th Edition
ISBN: 9781305862807
Author: GRAVETTER
Publisher: CENGAGE L
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Inverse Normal Distribution
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Mean, Median, Mode
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A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow compar…
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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, Loose-leaf Version

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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