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?

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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Question

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?

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