1-11. I need to make sure I have the correct answers. le Choice the choice that
ID: 3159182 • Letter: 1
Question
1-11. I need to make sure I have the correct answers.le Choice the choice that best completes the 1. For an ANOVA comparing statement or answers the question are no differences between any of the population means. B. At least one of the three means is different from another mean. C. All three of the population means are comparing three treatment conditions, what is stated by the null hypothesis (Ho)? A. T There are no di populatico different from each other ation t from each other. D. None of the other choices is correct 2. In an analysis of variance, differences caused by treatment effects contribute to which of the following variances ts A. Both between-treatments variance and within-treatments varianc variance but not within-treatments variance C. Within-treatments between-treatments variance D. Neither between-treatments variance nor wi variance ariance but not thin-treatments On average, what value is expected for the F-ratio if the null hypothesis is f A. O 3. alse? B. 1.00 C. Between 0 and 1.00 D. Much greater than 1.00 4. In an ANOVA, what is represented by the letter N? A. The sum of the scores in a specific treatment B. The sum of the study C. The number of scores in a specific treatment D. The number of scores in the research study scores in the total research total A research study comparing three treatments with n- 5 in each treatment produces Ti T3-15, with ss,-6, ss,-9, ss,-9, and EXs_ 94. For this study, what is SSbetwoen? 5. treatments with n-5 in each treatment produces Ti-5, T2 10 -10 B.24 C.34 D.68 with a An ANOVA is used to evaluate the mean differences among three treatment conditions sample of n-12 participants in each treatment. For this study, what is dfiotal? A. 2 B. 11 C. 33 D. 35 6. 7. An ANOVA is used to evaluate the mean differences among three treatment conditions with a sample of n = 12 participants in each treatment. For this study, what is dfwithin treatments? A. 2 B. 11 C. 33 D. 35 An analysis of variances produces dfetal = 29 and dfwithin = 27. For this analysis, what is df etween? A. 1 B. 2 C.3 D. Cannot be determined without additional information 8. = 30. For this analysis, what is SSbetween? An analysis of variance produces SStotal-80 and SSwithin A. 30 B. 50 C. 110 D. Cannot be determined without additional information e produces SSot80 and SSwithin 30. For this analysis, what is SSbereen? 9, uces SSbetween -40 and MSbetween -20. In this analysis, how many An analysis of variance prod treatment conditions are being compared A. 2 B.3 C.4 D. 20 10. An analysis of variance produces SSbetween 40 and MS 10. 1. Which o f the following is expected if the null hypothesis is true for an analysis of variance? bout the same size as SSotal B. SSbetween should be about the sam B. SSbetween should be about the same size as A. SSbetween should be about th e same size as SSiotal SSwithin C. MSbetween should be about the same size as MSotal D. MS size as MSwithin Sbetween should be about the same size as MSotal D. MSbctween should be about the same ut the same size as MSotal D. MSbctween should be about the sanm
Explanation / Answer
1. A)- There is no diffrerence betweeen any of the population mean.
2. B)- Between treatment variance but not within treatment variance
3. A)- 0
4. D)- The number of scores in the total research study.
6. We have n = 12 and k = 3.
The df total is given by,
df total = (kn - 1) = k(12) -1 = (36 - 1) = 35
D)- 35
7. We have n = 12 and k = 3.
The df within treatment is given by,
df within treatment= k(n - 1) = 3(12 - 1)= 3(11) = 33
C)- 33
8. We have n = 12 and k = 3.
The df between is given by,
df between = (k - 1) = (3 - 1) = 2
B)- 2
9) SS between = SS total - SS within = (80 - 30) =50
B) - 50
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