A psychologist was interested in whether there was a gender difference in the use of email.She hypothesized that because women are generally better communicators than men,they would spend longer using email than their male counterparts.To test this hypothesis,the researcher sat by the computers in her research methods laboratory and when someone started using email,she noted whether they were male or female and then timed how long they spent using email (in minutes) .How should she analyse the differences in males and females (use the output below to help you decide) ?
A) Paired t-test
B) Wilcoxon signed-rank test
C) Independent t-test
D) Mann-Whitney test
Correct Answer:
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Q1: When the groups have unequal numbers of
Q3: The _ test is based on calculating
Q4: You have carried out a Kruskal-Wallis test.
Q5: What is the parametric equivalent of the
Q8: What symbol represents the test statistic for
Q9: What can be done to reduce the
Q12: What is the problem with doing multiple
Q13: Non-parametric tests are used when:
A)The assumptions of
Q17: What is the Jonckheere-Terpstra test used for?
A)To
Q18: What is the Kruskal-Wallis test based upon?
A)Ranks
B)Means
C)Intervals
D)Residuals
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