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(a). The null and alternative hypotheses are Но: 3D 21.7 Ha:µ > 21.7 Ho:µ = 20.3 Но: %| На: д < 20.3 Ο H0: μ =21.7 Ha:µ < 21.7 Ho :ã = 20.3 Ha:ã < 20.3

(a). The null and alternative hypotheses are Но: 3D 21.7 Ha:µ > 21.7 Ho:µ = 20.3 Но: %| На: д < 20.3 Ο H0: μ =21.7 Ha:µ < 21.7 Ho :ã = 20.3 Ha:ã < 20.3

MATLAB: An Introduction with Applications
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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A pharmaceutical company claims that they have a new drug that will significantly reduce the average recovery time for a particular operation. Until now the mean recovery time has been 21.7 hours. The next 22 patients having this operation at a large teaching hospital are treated with the new drug and the average recovery time for these patients is found to be 20.3 hours with a standard deviation of 3.47 hours. Do the data support the pharmaceutical company's claim? Test the appropriate hypothesis at a = 0.10. (a). The null and alternative hypotheses are Но: р — 21.7 Ha: µ > 21.7 O Ho : µ = 20.3 На:д < 20.3 Но: р — 21.7 На:и < 21.7 O Ho : = 20.3 Ha:ã < 20.3
Transcribed Image Text:A pharmaceutical company claims that they have a new drug that will significantly reduce the average recovery time for a particular operation. Until now the mean recovery time has been 21.7 hours. The next 22 patients having this operation at a large teaching hospital are treated with the new drug and the average recovery time for these patients is found to be 20.3 hours with a standard deviation of 3.47 hours. Do the data support the pharmaceutical company's claim? Test the appropriate hypothesis at a = 0.10. (a). The null and alternative hypotheses are Но: р — 21.7 Ha: µ > 21.7 O Ho : µ = 20.3 На:д < 20.3 Но: р — 21.7 На:и < 21.7 O Ho : = 20.3 Ha:ã < 20.3
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