ANOVA, suppose that there are four treatments with n1 = 5, n2 = 6, n3 = 5, and n4 = 4. What is the rejection region for this test at the 5% level of significance? a. F > F0.025, 4, 20 b. F > F0.05, 3, 16
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10.3
In one-way ANOVA, suppose that there are four treatments with n1 = 5, n2 = 6, n3 = 5, and n4 = 4. What is the rejection region for this test at the 5% level of significance?
b. F > F0.05, 3, 16
c. F > F0.025, 3, 16
d. F > F0.05, 4, 20
Step by step
Solved in 2 steps
- What is meant by the sample space of an experiment?The result of an One-Way ANOVA for total stress symptoms among four groups of teachers (pre-k, elementary, middle, high school) was F(3, 117) = 3.827, p < .05. The corresponding effect size was η2 = .26. What can be concluded about these results?What source of variation is found in an ANOVA summary table for a within subjects design that is not in an ANOVA summary table for a between subjects design. What happens to this source of variation in a between-subjects design?
- 11. If there is an overall significant F in a one-way ANOVA, can we conclude that the group membership or treatment variable caused the observed differences in the group means? Why or why not?In two-way ANOVA, identify the statistic that is used as a measure of variationa. among the sample means for the different levels of Factor A.b. among the sample means for the different levels of Factor B.c. due to interaction.d. within the samples.A high school principal wanted to know if there was a difference in absences for 9th grade, 10th grade, 11th grade, and 12th grade among students with less than a 2.0 GPA. She took a random sample of n=5 students from each grade level and compared absences among the four grades using ANOVA. 9th grade 10th grade 11th grade 12th grade 6 10 17 15 9 12 8 16 6 11 11 12 7 11 14 12 7 14 15 12 Which of the following is the…
