Use Exercises 12.99 and 12.100 to show that the chisquare homogeneity test for comparing two population proportions and the two-tailed two-proportions z-test are equivalent.
Answer to relevant QuestionsAccording to Current Housing Reports, published by the U.S. Census Bureau, the primary heating fuel for all occupied housing units is distributed as follows. Suppose that you want to determine whether the distribution of ...Distribution: 0.5, 0.3, 0.2; Observed frequencies: 45, 39, 16; Significance level = 0.01 We have provided a distribution and the observed frequencies of the values of a variable from a simple random sample of a population. ...An American roulette wheel contains 18 red numbers, 18 black numbers, and 2 green numbers. The following table shows the frequency with which the ball landed on each color in 200 trials. At the 5% significance level, do the ...The t-table has entries for areas of 0.10, 0.05, 0.025, 0.01, and 0.005. In contrast, the χ2-table has entries for those areas and for 0.995, 0.99, 0.975, 0.95, and 0.90. Explain why the t-values corresponding to these ...According to the Centers for Disease Control and Prevention publication HIV/AIDS Surveillance Report, Vol. 19, the number of AIDS cases in the United States in 2007, by gender and race, is as shown in the following ...
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