Consumers know for fact that on valentine’s day, the prices of roses vary with an average standard deviation of P75. A random sample of 33 buyers was observed. Their purchasing prices yielded a standard deviation of P87. Can we concluded at the 1% level of significance that the prices of roses on Valentine’s day show significant increased variability? What is the computed value and decision?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Consumers know for fact that on valentine’s day, the prices of roses vary with an average standard deviation of P75. A random sample of 33 buyers was observed. Their purchasing prices yielded a standard deviation of P87. Can we concluded at the 1% level of significance that the prices of roses on Valentine’s day show significant increased variability? What is the computed value and decision?

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