STATS 250 Lecture 12: Lecture 12
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STATS 250 Full Course Notes
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Lecture 12: testing hypotheses about the difference in two population. Next we need to determine the test statistic and understand the conditions required for the test to be valid. In the case of two population proportions, if the null hypothesis is true, we have p1 p2 = 0 or that the two population proportions are the same, p1 = p2 = p. what is a reasonable way to estimate the common population proportion p? p pn. Large sample z test p p p p p. They were also asked to report their gender so a comparison could be made between the two populations of male versus female college students. Of the 93 women, 83 said they would, and of the 75 men, 53 said they would. Test the hypothesis that equal proportions of college men and women would say they would return the money versus the alternative hypothesis that a higher proportion of women would do so.