morganlatricia71 morganlatricia71

15-05-2024
Mathematics

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. Your lower confidence limit is not correct. • Your upper confidence limit is not correct. A researcher wishes to estimate the proportion of X-ray machines that malfunction. A random sample of 225 machines is taken, and 63 of the machines in the sample malfunction. Based upon this, compute a 99% confidence interval for the proportion of all X-ray machines that malfunction. Then find the lower limit and upper limit of the 99% confidence interval. Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places. (If necessary, consult a list of formulas.)

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