I need help to answer this Qs? The paired t test is a. a type of Wilcoxon matched-pairs test. b. a parametric test. c. a nonparametric test. d. described by both a and b. for the person in the pair who had therapy plus exercise is named "groupex." Second, the SPSS menu is used to generate the output, as shown in Box 6-5 (see Table 6-6). The exact p-value for this sum of ranks is .358. Because the p-value is larger than .05, it can be concluded that no statistically significant difference exists in the median depres- sion score between the two CHAPTER 6 The Paired t Test and the Wilcoxon Matched-Pairs Signed Rank Test 145 2. The paired t test is used to determine whether the means of which of the following are different from one another? a. Two repeated measures b. Three repeated measures c. Measures from a case and a matched control d. Both a and c 3. The paired t test is best used when the measurement scale of the characteristic of interest is a. nominal. b. ordinal. c. interval or ratio. d. any of the above. 4. The Wilcoxon matched-pairs test is best used when the measurement scale of the characteristic of interest is a. nominal. b. ordinal. c. interval or ratio. d. b or c. 5. Which of the following statistical tests can be used if the data are paired but normally distributed in only one of the measures being compared? a. t test for pooled variances b. Paired t test c. Wilcoxon matched-pairs test d. Mann-Whitney U-test 6. Data are considered paired if a. two measures of the same variable are taken on the same person. b. measures of the same variable are taken on a case and a matched control. c. measures of the same variable are taken on a case group and an unmatched control group. d. both a and b are true. 7. Which of the following measures of central tendency are tested by the Wilcoxon matched-pairs test to determine whether two groups are significantly different? a. Means b. Medians c. Modes d. Interquartile ranges 8. The Wilcoxon matched-pairs test is most likely to be significant when a. the sums of the ranks of the negative and positive differences are about equal. b. the sum of the ranks of the negative differences is substantially greater than that of the positive differences. c. the sum of the ranks of the positive differences is substantially greater than that of the negative differences. d. both b and c are true. 146 SECTION 2 Analyzing the Data 9. When analyzing the mean or median differences of paired data, which of the fol- lowing are considered most important? a. Magnitude of the difference b. Statistical significance of the difference c. Sample size d. Both a and b are equally important 10. The Wilcoxon matched-pairs test is best used when a. there are two matched groups to compare. b. there are three or more matched groups to compare. c. the data are normally distributed. d. the data are from an entire population rather than just a sample