Question 188609
Four different brands of cola are tested in a taste test(everybody is supposed to be blindfolded). The following table shows how many people were able to identify 4 popular brands of cola. At a .05 level of significance, test the claim that the results are equally distributed. 
Brand Observed
Coca Cola 66
Pepsi Cola 86
Diet Cola 18
Diet Pepsi 30 
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Use the Chi Sq Table with df = 3 and right tail = 5%
Find the critical value. 
Ans: C. 7.815
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Calculate the  Chi-Sq with "observed" being the listed values
and "expected" being 50,50,50,50
Then the test Statistic is
Ans: D. 59.52
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Cheers,
Stan H.