MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Step 1
The question is about hypo. testing
Given :
Randomly selected no. of products from supplier 1 ( n1 ) = 26
Std. deviation of quality of products from supplier 1 ( s1 ) = 6.0042
Randomly selected no. of products from supplier 2 ( n2 ) = 25
Std. deviation of quality of products from supplier 2 ( s2 ) = 1.802
Level of signif. ( ) = 0.01
To find :
Test that var. in quality for supplier 1 is larger than supplier 2
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