An analyst at your company has told you that the non-parametric equivalent of the paired t-test is the ‘non-paired u-test’. You don’t believe him, but what is the correct answer?
A. Mann-Whitney test
B. Wilcoxon signed-rank test
C. Friedman test
D. Kruskal-Wallis test
Answer: B
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In what year was it decided in court that schools should not remain segregated?
A. 1896 B. 1914 C. 1954 D. 1964
Assessment simply refers to teachers administering a test of young children
Indicate whether the statement is true or false
The probability of randomly guessing the correct answer to a multiple-choice item increases as the number of alternatives increases
a. True b. False
Ken randomly selected 75 students to participate in his study and then randomly assigned them to one of three conditions. When he examined his groups he found he had very unequal gender by condition. Ken's samples illustrate
a. sampling bias. b. sampling error. c. nonrandom sampling. d. purposive sampling.