Did labor force participation rates (LFPR) for women increase between 1968 and 1972? The Data and Story
Question:
a. Do the data provide sufficient evidence to conclude that the LFPR for women increased between 1968 and 1972? Conduct a nonparametric, two-sample, independent samples Wilcoxon rank sum test at the 0.01 level of significance. Clearly state the hypotheses and your conclusion. Report the p-value (observed level of significance) for your test.
b. Consider, as an alternative to the foregoing independent sample analysis, a paired sample procedure, the nonparametric Wilcoxon signed ranks test. Test once more the hypothesis of part a, this time using the Wilcoxon signed ranks test applied to the differences in LFPRs [1972 1968]. Again, clearly state your conclusion and p-value.
c. Between the two tests of parts a and b, which is the more appropriate for the current data situation? Why?
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Related Book For
Business Statistics In Practice
ISBN: 9780073401836
6th Edition
Authors: Bruce Bowerman, Richard O'Connell
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