A supermarket owner conducted a survey on the preference of the customers to a certain brand of coffee sold in his supermarket. The first 100 customers who entered the supermarket on a given day were interviewed and the results are shown below. Brand Brand x Brand y Brand z No. of 25 45 30 Customers Test the hypothesis that brand preference of the customers does not differ at 5% level of significance.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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A supermarket owner conducted a survey on the preference of the
customers to a certain brand of coffee sold in his supermarket. The
first 100 customers who entered the supermarket on a given day were
interviewed and the results are shown below.
Brand
Brand x
Brand y
Brand z
No. of
25
45
30
Customers
Test the hypothesis that brand preference of the customers
does not differ at 5% level of significance.
Transcribed Image Text:A supermarket owner conducted a survey on the preference of the customers to a certain brand of coffee sold in his supermarket. The first 100 customers who entered the supermarket on a given day were interviewed and the results are shown below. Brand Brand x Brand y Brand z No. of 25 45 30 Customers Test the hypothesis that brand preference of the customers does not differ at 5% level of significance.
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