Anova Objective Type Questions and Answers

Questions

21 If FDATA = 5, the result is statistically significant

A Sometimes

B Always

C Never

D None Of The Above

Answer: Sometimes

22 You obtained a significant test statistic when comparing three treatments in a one-way ANOVA. In words, how would you interpret the alternative hypothesis HA?

A At least two treatments are different from each other in terms of their effect on the mean response

B Exactly two of the three treatments have the same effect on the mean response

C All three treatments have different effects on the mean response

D None of the above

View Answer

Answer: At least two treatments are different from each other in terms of their effect on the mean response

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23 You carried out an ANOVA on a preliminary sample of data. You then collected additional data from the same groups; the difference being that the sample sizes for each group were increased by a factor of 10, and the within-group variability has decreased substantially. Which of the following statements is NOT correct.

A The degrees of freedom associated with the treatment term has increased

B The degrees of freedom associated with the error term has increased

C FDATA has changed

D SSE has decreased

View Answer

Answer: The degrees of freedom associated with the treatment term has increased

24 ANOVA was used to test the outcomes of three drug treatments. Each drug was given to 20 individuals. The MSE for this analysis was 16. What is the standard deviation for all 60 individuals sampled for this study?

A 4

B 6.928

C 48

D none of the above

View Answer