6) Parametric test, unlike the non-parametric tests, make certain assumptions about a. The population size b. The underlying distribution c. The sample size d. None of the above 7) Compared to parametric methods, the non parametric methods are: a. Less accurate b. Less efficient c. Easy to compute d. Choice b and c but not a 8) For the use of a non-parametric test which of the following assumptions has to be satisfied. a. The data should arise from interval measures. b. The distribution has to be Normal. c. No assumption about the nature of distribution is required. d. The variables under reference must be dichotomous. 9) Which of the following test uses Rank Sums a. Sign test b. Chi-Square tests c. Runs Test d. Wilcoxon tests 10) Non parametric tests used with ____ data that compare expected versus observed frequencies is chi square test. a. Ordinal b. Nominal c. Normal d. Constant