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A researcher wishes to estimate the proportion of x-rays machines that malfunction. A random sample of...
A researcher wishes to estimate the proportion of x-rays machines that malfunction. A random sample of 275 machines is taken, and 88 of the machines in the sample malfunction. Based upon this, compute a 95% confidence interval for the proportion of all x-ray machines that malfunction. Then complete the table below. Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places. ( If necessary, consult a list of formulas.)
What is the lower limit of the 95% confidence interval?
What is the upper limit of the 95% confidence interval?
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