The admitting office at Sisters of Mercy Hospital wants to be able to inform patients of the average level of expenses they can expect per day. Historically, the average has been approximately $1170. The office would like to know if there is evidence of a decrease in the average daily billing. Seventy-seven randomly selected patients have an average daily charge of $1103 with a standard deviation of $254. Conduct a hypothesis test to determine whether there is evidence that average daily charges have decreased at a significance level of a = 0.05. Assume the population of daily hospital charges is approximately normally distributed. Step 3 of 3: Draw a conclusion and interpret the decision.
The admitting office at Sisters of Mercy Hospital wants to be able to inform patients of the average level of expenses they can expect per day. Historically, the average has been approximately $1170. The office would like to know if there is evidence of a decrease in the average daily billing. Seventy-seven randomly selected patients have an average daily charge of $1103 with a standard deviation of $254. Conduct a hypothesis test to determine whether there is evidence that average daily charges have decreased at a significance level of a = 0.05. Assume the population of daily hospital charges is approximately normally distributed. Step 3 of 3: Draw a conclusion and interpret the decision.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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