What sample size would be required to estimate the true proportion of American female business executives who prefer the title "Ms.," with an error of ±0.025 and 98 percent confidence?
Answer to relevant QuestionsWhat sample size would be needed to estimate the true proportion of American households that own more than one DVD player, with 90 percent confidence and an error of ±0.02? Find the 95 percent confidence interval for the population variance from these samples. a. n = 15 commuters, s = 10 miles driven b. n = 18 students, s = 12 study hours A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighed on a very accurate scale. The results in grams were (a) Construct a 90 percent confidence interval for the true mean weight. (b) What ...The fat content of a pouch of Keebler Right Bites © Fudge Shoppe © Mini-Fudge Stripes is normally distributed with a mean of 3.50 grams. Assume a known standard deviation of - 0.25 gram. (a) What is the standard error of ...A study showed that fourteen of 180 publicly traded business services companies failed a test for compliance with Sarbanes-Oxley requirements for financial records and fraud protection. Assuming that these are a random ...
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