Math

StatisticsEssentials of Statistics for the Behavioral SciencesThe following data are from an independent-measures study comparing two treatment conditions. a. Use an independent-measures t test with α = .05 to determine whether there is a significant mean difference between the two treatments. b. Use an ANOVA with α = .05 to determine whether there is a significant mean difference between the two treatments. You should find that F = t 2 .BuyFind*launch*

8th Edition

Frederick J Gravetter + 1 other

Publisher: Cengage Learning

ISBN: 9781133956570

Chapter 12, Problem 21P

Textbook Problem

The following data are from an independent-measures study comparing two treatment conditions.

a. Use an independent-measures *t* test with

b. Use an ANOVA with
*F = t ^{2}.*

Essentials of Statistics for the Behavioral Sciences

Ch. 12.2 - Explain the difference between the testwise alpha...Ch. 12.2 - The term analysis means separating or breaking a...Ch. 12.2 - If there is no systematic treatment effect, then...Ch. 12.2 - What is the implication when an ANOVA produces a...Ch. 12.3 - Calculate SStotal, SSbetween, and SSwithin for the...Ch. 12.3 - A researcher reports an F-ratio with dfbetween = 3...Ch. 12.3 - A researcher conducts an experiment comparing...Ch. 12.4 - A researcher obtains F = 4.10 with df = 2, 14. Is...Ch. 12.4 - For an ANOVA evaluating the mean differences among...Ch. 12.5 - A researcher used ANOVA and computed F = 4.25 for...

Ch. 12.5 - A research study comparing three treatment...Ch. 12.6 - With k = 2 treatments, are post hoc tests...Ch. 12.6 - Three treatments, each with a sample of n = 8...Ch. 12.7 - A researcher uses an independent-measures t test...Ch. 12.7 - An ANOVA produces an F-ratio with df = 1, 34....Ch. 12 - Explain why the F-ratio is expected to be near...Ch. 12 - Several factors influence the size of the F-ratio....Ch. 12 - Why should you use ANOVA instead of several t...Ch. 12 - Posttests are done after an ANOVA. a. What is the...Ch. 12 - An independent-measures study comparing four...Ch. 12 - The following data summarize the results from an...Ch. 12 - For the preceding problem you should find that...Ch. 12 - The following data summarize the results 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...Ch. 12 - There is some evidence that high school students...Ch. 12 - A researcher reports an F-ratio with df = 2. 27...Ch. 12 - A research report from an independent-measures...Ch. 12 - The following summary table presents the results...Ch. 12 - A pharmaceutical company has developed a drug that...Ch. 12 - A developmental psychologist is examining the...Ch. 12 - The following data were obtained from an...Ch. 12 - The following values summarize the results from an...Ch. 12 - The following data are from an...Ch. 12 - One possible explanation for why some birds...Ch. 12 - There is some research indicating that college...Ch. 12 - New research suggests that watching television,...

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