In analysis of variance (ANOVA), MSwn refers to a. a variance estimate that incl

Question

In analysis of variance (ANOVA), MSwn refers to a. a variance estimate that includes random error" (also known as "nature & nurture") b. a variance estimate that includes "random error" (also known as "nature & nurture") plus "treatment effects" c. a pooled standard deviation used to average out the effects of the independent variable for comparison purposes d. an average multiplied by itself For a 0.05 significance level, the critical value for F in of variance is equal to ______ when there analysis are 4 groups with 7 scores in each group. a. 2.76 b. 4.18 c. 3.01 d. 5.49 In ANOVA, when Fobt is less than Ferit. a. the null hypothesis is retained b. the null hypothesis is rejected c. the population means are not all the same d. a type 2 error has occurred. If an educational psychologist wanted to compare the average performance on a test between students at two colleges, she would use a. ANOVA b. a correlational analysis c. a one-sample t-test d. an independent samples t-test Which method would be used to determine if the population of male rugby players are significantly different in height than the general population of men and the standard deviation of the population is NOT known? a. Fishers protected t-test b. a correlational analysis c. a one-sample t-test d. ANOVA.

Explanation / Answer

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A. A variance estimate that includes random error, also termed as error variance

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B. 4.18. The exact answer should be 4.75

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A. The null hypothesis is retained

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D. An independent samples t-test

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