Question

26. ____ In analysis of variance, observed mean differences appear, somewhat disguised, as variability a) between groups   b) between subjects c) within groups   d) within subjects

27. ____ When all possible difference between pairs of population means are evaluated not with F test, but a series of regular t tests, the probability of a a) type I error is larger than the level of significance b) type I error is smaller than the level of significance c) type II error is smaller than the level of significance d) type II error is larger than the level of significance

28. ____ When t value increases, a) null hypothesis is retained   b) alternative hypothesis is retained c) p-value decreases   d) level of significance is changed

29. ____ When there is more than two population means, which statistical analysis should be used to see the simple significant mean difference? a) paired t test   b) dependent t test c) independent t test d) F test

30. ____ A researcher would prefer to report an exact p-value of a) .005 b. .03 c. .09 d. .15

Answer 1

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26. ___A_ In analysis of variance, observed mean differences appear, somewhat disguised, as variability a) between groups   b) between subjects c) within groups   d) within subjects

27. ___A_ When all possible difference between pairs of population means are evaluated not with F test, but a series of regular t tests, the probability of a a) type I error is larger than the level of significance b) type I error is smaller than the level of significance c) type II error is smaller than the level of significance d) type II error is larger than the level of significance

28. ___C When t value increases, a) null hypothesis is retained   b) alternative hypothesis is retained c) p-value decreases   d) level of significance is changed

29. __D__ When there is more than two population means, which statistical analysis should be used to see the simple significant mean difference? a) paired t test   b) dependent t test c) independent t test d) F test

30. _A__ A researcher would prefer to report an exact p-value of a) .005 b. .03 c. .09 d. .15