Solve the following problems. Use separate sheets when necessary. 1. 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 en- tered 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 do 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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Solve the following problems. Use separate sheets when necessary.
1.
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 en-
tered 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 do not differ at 5% level
of significance.
Transcribed Image Text:Solve the following problems. Use separate sheets when necessary. 1. 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 en- tered 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 do not differ at 5% level of significance.
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