Use the following information o answer (he ne.t jut exercises. A hospital Is trying to cut down on ernergency room waft times. It Is interested In the amount of time patients must wait before being called back to be examined. An Investigation committee iandom1v surveyed 70 patients. The sample mean was 1.5 bows with a sample standard deviation of 0.5 hours.
Construct a 9500 confidence thtera1 for the population mean time spent waiting. State the cotafidence interval, sketch the graph, and calculate the enor bound.
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- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill