A supermarket chain conducts a survey by recording the brand of tea purchased by customers in its stores. The chain offers four bands of tea: A, B, C, D. The brand preferences of a random sample of buyers are shown in the table: A B C D 31 24 11 28

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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  1. A supermarket chain conducts a survey by recording the brand of tea purchased by customers in its stores. The chain offers four bands of tea: A, B, C, D. The brand preferences of a random sample of buyers are shown in the table:

A

B

C

D

31

24

11

28

 

Do the data indicate a preference exists for any of the brands? Test, using
a =
0.10.
Transcribed Image Text:Do the data indicate a preference exists for any of the brands? Test, using a = 0.10.
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