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4) 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 $1,240. The office would like to know if there is evidence of an increase in the average daily billing. Twenty randomly selected patients have an average daily charge of $1,491 with a standard deviation of $342. H.: H a) Conduct a hypothesis test to determine whether there is evidence that average daily charges have increased at a = 0.10. b) What is the test statistic and critical value? c) What conclusion can you draw?

4) 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 $1,240. The office would like to know if there is evidence of an increase in the average daily billing. Twenty randomly selected patients have an average daily charge of $1,491 with a standard deviation of $342. H.: H a) Conduct a hypothesis test to determine whether there is evidence that average daily charges have increased at a = 0.10. b) What is the test statistic and critical value? c) What conclusion can you draw?

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 19PFA
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Please show EVERY STEP!!! DO NOT Skip a step. It makes it hard to know what step you skipped. Use Z-chart for number is over 30. Also, please show the bell curve graph!!!!
4) 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 $1,240. The office would like to know if there is evidence of an increase in the average daily billing. Twenty randomly selected patients have an average daily charge of $1,491 with a standard deviation of $342. H₂ : H: a) Conduct a hypothesis test to determine whether there is evidence that average daily charges have increased at a = 0.10. b) What is the test statistic and critical value? c) What conclusion can you draw?
Transcribed Image Text:4) 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 $1,240. The office would like to know if there is evidence of an increase in the average daily billing. Twenty randomly selected patients have an average daily charge of $1,491 with a standard deviation of $342. H₂ : H: a) Conduct a hypothesis test to determine whether there is evidence that average daily charges have increased at a = 0.10. b) What is the test statistic and critical value? c) What conclusion can you draw?
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