SOLUTION: a random sample of 500 individuals selected from each of three grouped and each person was asked to specify which of the three brands mobile phone is preferred as shown Age grou

Question 750135: a random sample of 500 individuals selected from each of three grouped and each person was asked to specify which of the three brands mobile phone is preferred as shown
Age group M1 M2 M3 Total
Under 40 100 50 80 230
45-50 5 20 120 145
51 and above 15 30 80 125
Total 120 100 280 500
test the hypothesis that the populations are homogenous with respect to brand mobile phone they prefer at 5% level of confidence

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
a random sample of 500 individuals selected from each of three grouped and each person was asked to specify which of the three brands mobile phone is preferred as shown
Age group M1 M2 M3 Total
Under 40 100 50 80 230
45-50 5 20 120 145
51 and above 15 30 80 125
Total 120 100 280 500
test the hypothesis that the populations are homogenous with respect to brand mobile phone they prefer at 5% level of confidence
Ho: The row and column factors are homogeneous
Ha: They are not
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test statistic: Chi-Sq = 111.98
p-value: 2.757x10^-23
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Since the p-value is less than 5%, reject Ho at the 5% level of significance.
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Cheers,
Stan H.

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