The _________________________ test determines whether two populations have the same probability distribution based on evidence from two independent samples.
A) Wilcoxon rank-sum
B) sign
C) Wilcoxon signed-rank
D) Kruskal-Wallis
Q. 2________ variables are used to represent qualitative data in a multiple regression model and can only take on the values 0 and 1.
A) Regression
B) Dependent
C) Independent
D) Dummy
Q. 3When using the chi-square hypothesis test and the observed frequencies are relatively close to the expected frequencies, which one of the following statements is true?
A) The scenario will result in a smaller chi-square statistic, which increases the likelihood that there is support for the null hypothesis.
B) The scenario will result in a smaller chi-square statistic, which increases the likelihood that there is support for the alternative hypothesis.
C) The scenario will result in a larger chi-square statistic, which increases the likelihood that there is support for the null hypothesis.
D) The scenario will result in a larger chi-square statistic, which increases the likelihood that there is support for the alternative hypothesis.
Q. 4The test statistic for testing the significance for the regression coefficient follows the_______________________.
A) normal distribution
B) Student's t-distribution
C) F-distribution
D) chi-square distribution
Q. 5The chi-square test requires that each expected frequency be equal to or greater than ________.
A) 5
B) 10
C) 20
D) 30
Q. 6The test statistic for testing the significance for the overall regression model follows the_______________________.
A) normal distribution
B) Student's t-distribution
C) F-distribution
D) chi-square distribution
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