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1) In one-way ANOVA where there are k treatments and n observations, the degrees of freedom for the F-statistic are: 9 a. k -1 and
1) In one-way ANOVA where there are k treatments and n observations, the degrees of freedom for the F-statistic are: 9 a. k -1 and n - k. b. n-1 and k - 1. c. n and k. d. n- k and k - 1. 2) In a one-way ANOVA, assume you have three treatments with n1 = 5, n2 = 6, and n3 = 5. If you use a 5% significance level, what would the rejection region for this test be? a. F> 3.68 b. F> 3.63 C. F> 3.81 d. F> 4.08 3) In a one-way ANOVA test, the test statistic is F= 4.25. The rejection region is F> 3.06 for the 5% level of significance, F > 3.8 for the 2.5% level, and F > 4.89 for the 1% level. For this test, the approximate p-value is: a. approximately 0.05. b. between 0.025 and 0.05. c. between 0.01 and 0.025. d. greater than 0.05. 4) A drug for treating depression patients is evaluated for effectiveness. Three treatment options exist: 20mg, 10mg, and placebo (20, 10, P). Twelve patients are randomly assigned to provide four patients for each level. The change in score from a common test designed to quantify depression was recorded for each patient. The ANOVA summary from the test is below: SOURCE. DF SS. MS. F P Treat or Between. 2. 228.17. 114.08. 0.0 Error or Within. 9. 29.50. 3.28 Total. 11 a) What is the value of the test statistic, F? a. 0.5 b. 0.03 c. 7.73 d. 34.81 5) Are you, the student writing this exam, a valid person worthy of love and respect? (The answer is true, you're great!) Select one: True False
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