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Pinworm: In a prior sample of U.S. adults, the Center for Disease Control (CDC), found that 11% of the people in this sample had pinworm

Pinworm: In a prior sample of U.S. adults, the Center for Disease Control (CDC), found that 11% of the people in this sample had pinworm but the margin of error for the population estimate was too large. They want an estimate that is in error by no more than 1.5 percentage points at the 90% confidence level. Enter your answers as whole numbers. (a) What is the minimum sample size required to obtain this type of accuracy? Use the prior sample proportion in your calculation. Prior sample info : Pinworm: In a random sample of 810 adults in the U.S.A., it was found that 84 of those had a pinworm infestation. You want to find the 95% confidence interval for the proportion of all U.S. adults with pinworm. (a) What is the point estimate for the proportion of all U.S. adults with pinworm? .104 (b) Construct the 95% confidence interval for the proportion of all U.S. adults with pinworm. Round your answers to 3 decimal places. <.083 p <.125 The minimum sample size is U.S. adults. (b) What is the minimum sample size required to obtain this type of accuracy when you assume no prior knowledge of the sample proportion? The minimum sample size is U.S. adults

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