11) Assumptions of parametric statistics include_________.

a) large sample size

b) An independent variable

c) Normally distributed measure

d) Nominal or ordinal data

12) Which of the following tests is not an example of a non-parametric method?

a) Mann-Whitney-Wilcoxon test

b) sign test

c) Wilcoxon signed-rank test

d) Paired t test

13) When using the chi- square test for differences in two proportions with a contingency table that has r rows and c columns, the degrees of freedom for the test statistic will be:

a. n1 + n2-2

b. n-1

C. (r-1) + (c-1)

d. (r-1) (c-1)

14) The Wilcoxon rank-sum test compares

a. Two populations

b. Three or more populations

c. A sample mean to the population mean

d. None of the above

15) The________can be defined as the sequence of identical occurrence of the elements (numbers or symbols), preceded or followed by different occurrence of the elements or by no element at all.

a. Sign Test

b. Run Test

c. Median Test

d. Binomial Test

16)The sign test is

a. Less Powerful than that of the Wilcoxon signed-rank test

b. More Powerful than the paired sample t-test

c. More Powerful than the Wilcoxon signed-rank test

d. Equivalent to Mann-Whitney test

17) To perform a runs test for randomness the data must be

a. Qualitative

b. Quantitative

c. Divided into at least two classifications

d. Divided into exactly two classifications

18) When using the Sign test, if two scores are tied, then we

a. Count them

b. Discard them

c. Depends upon the scores

d. None of the above

19) Two brands of coffee are rated for taste on a scale of 1 to 10. Six persons are asked to rate each brand so that there is a total of 18 observations. The appropriate test to determine if two brand taste equally good is

a. Sign test for one sample

b. Chi-square test

c. Mann-Whitney U test

d. Median test

20)When ranking combined data in a Wilcoxon signed rank test, the data that receives a rank of 1 is the

a. lowest value

b. highest value

c. middle value

d. average of the highest and the lowest of value