With steps, without the use of excel   Alpha = 5

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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With steps, without the use of excel

 

Alpha = 5%

9. A researcher suspects that the level of a particular stream's pollutant is higher
than the allowable limit of 4.2 mg/l. A sample of n = 17 reveals a mean pollutant
level of x = 6.4 mg/l, with a standard deviation of 4.4 mg/l. Is there sufficient
evidence that the stream's pollutant level exceeds the allowable limit? What is the
%3D
p-value?
Transcribed Image Text:9. A researcher suspects that the level of a particular stream's pollutant is higher than the allowable limit of 4.2 mg/l. A sample of n = 17 reveals a mean pollutant level of x = 6.4 mg/l, with a standard deviation of 4.4 mg/l. Is there sufficient evidence that the stream's pollutant level exceeds the allowable limit? What is the %3D p-value?
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