
MATLAB: An Introduction with Applications
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Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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If n = 200 and p^ = 0.64, find the margin of error at a 95% confidence level.
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- According to statistics released by CNBC, the number of vehicles that are not insured is staggering. CNBC's sample results indicate that 44 out of 80 vehicles were uninsured. Give a 95% confidence interval for the population proportion of the form p^ ± E where p^ is the point estimator of the proportion and E is the margin of error. Select one: a. The interval is 0.450 ± 0.109. b. The interval is 0.550 ± 0.143. c. The interval is 0.450 ± 0.091. d. The interval is 0.550 ± 0.091. e. The interval is 0.550 ± 0.109.arrow_forwardA marketing research company is estimating which of two soft drinks college students prefer. A random sample of 110 college students produced the following 95% confidence interval for the proportion of college students who prefer drink A: (0.228, 0.603). Identify the point estimate (p^p^) for estimating the true proportion of college students who prefer that drink. Round to the nearest thousandth.arrow_forwardIf n = 560 and ˆpp^ (p-hat) = 0.5, construct a 95% confidence interval.Give your answers to three decimals < p <arrow_forward
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