Question: Find the 99 confidence interval for the difference in the
Find the 99% confidence interval for the difference in the population proportions for the data of a study in which 80% of the 150 Republicans surveyed favored the bill for a salary increase and 60% of the 200 Democrats surveyed favored the bill for a salary increase.
Answer to relevant QuestionsThe percentages of ontime arrivals for major U.S. airlines range from 68.6 to 91.1. Two regional airlines were surveyed with the following results. At a 0.01 is there a difference in proportions? Find each X, given . a. = 0.16, n = 100 16 b. = 0.08, n = 50 4 c. = 6%, n = 800 48 d. = 52%, n = 200 104 e.= 20%, n = 150 In a sample of 50 men, 44 said that they had less leisure time today than they had 10 years ago.In a sample of 50 women, 48 women said that they had less leisure time than they had 10 years ago. At α = 0.10 is there a ...A researcher wishes to see if the variance of the areas in square miles for counties in Indiana is less than the variance of the areas for counties in Iowa. A random sample of counties is selected, and the data are shown. At ...A metropolitan children’s museum open year-round wants to see if the variance in daily attendance differs between the summer and winter months. Random samples of 30 days each were selected and showed that in the winter ...
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