Answer to Question #348877 in Statistics and Probability for Showmiya

Question

In a market survey conducted to examine whether the choice of a brand is related to the income 

levels of the consumers, a random sample of 400 consumers reveal the following: 

Income level (per month) Brand 1 Brand 2 Brand 3 Total

<20000 93 72 75 240

20000-50000 50 35 37 122

>50000 12 15 11 38

Total 155 122 123 400

Test the association between income level and brand preference at 5% significant level.

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Answer 1

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