A. Data must be measured on the same scale
B. Data should be of ordinal scale at least
C. Data must be distribution at least approximately as a t-distribution
D. Data must be from two independent samples
Related Mcqs:
- Wilcoxon Rank-Sum test can be of_______________?
A. Lower tailed
B. Upper tailed
C. Either of the above
D. None of the above - Which of the following test use Rank Sums____________?
A. Kruskal-Wallis and Wilcoxon tests
B. Runs test
C. Chi-Square and sign test
D. F test - The Wilcoxon, Rank-Sum test used to compares_______________?
A. Any number of populations
B. A sample mean to the population mean
C. Two populations
D. Three populations - The Mann-Whitney U test is preferred to a t-test when____________?
A. Sample are dependent
B. The assumption of normality is not met
C. Sample sizes are small
D. Data are paired - A test is said to be most powerful test of size α, if_______________?
A. Among all other test of size α or less it has the largest power
B. Among all other test of size α or greater it has the largest 1 – α
C. Among all other test of size α or greater it has the smallest power
D. Among all other test of size α or greater it has the largest β - In correlation, both variables are______________?
A. Random
B. Fixed
C. Non-random
D. Experimental - Correlation is _____________ of regression coefficients?
A. A.M.
B. G.M.
C. M.D.
D. H.M. - Correlation coefficient is _________ of origin and unit of measurement?
A. Origin
B. Dependence
C. Independence
D. None - Correlation coefficient is ___________ with respect to x and y?
A. +vely
B. Non-normal
C. Symmetrical
D. Skewed - If x and y are Independent to each other the coefficient of correlation is _____________?
A. -1
B. +1
C. .6
D. 0
