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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.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 3GP
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The admitting office at Sisters of Mercy Hospital wants 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.
Transcribed Image Text:The admitting office at Sisters of Mercy Hospital wants 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.
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