The Soap and Detergent Association issued its fifth annual Clean Hands Report Card survey for 2009. From the answers to a series of hygiene-related questions posed to American adults, it was found that 62% of 442 women washed their hands more than 10 times per day, while 37% of 446 men did the same. Find the 95% confidence interval for the difference in proportions of women and men that washed their hands more than 10 times a day.
Answer to relevant QuestionsIn a survey of 300 people from city A, 128 prefer New Spring soap to all other brands of deodorant soap. In city B, 149 of 400 people prefer New Spring soap. Find the 98% confidence interval for the difference in the ...Find the p-value for the test with alternative Hypothesis Pe< pR using the data in Exercise 10. 95. Explain how 312.75, 2.25, and 0.0162 were obtained in the first row of Table 11. 4 A large supermarket carries four qualities of ground beef. Customers are believed to purchase these four varieties with probabilities of 0.10, 0.30, 0.35, and 0.25, respectively, from the least to most expensive variety. A ...Using Table 8 of Appendix B, find the following: a. x2(10, 0.01) b. x2(12, 0.025) c. x2(10, 0.95) d. x2(22, 0.995)
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