Question
A researcher wishes to estimate the proportion of X-ray machines that malfunction. A random sample of 275 machines is taken, and 79 of the machines
A researcher wishes to estimate the proportion of X-ray machines that malfunction. A random sample of 275
machines is taken, and 79
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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Linear Algebra and Its Applications
Authors: David C. Lay
4th edition
321791541, 978-0321388834, 978-0321791542
