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Suppose a random sample of 10,000 individuals is asked to identify their favorite brand of soap...

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Question

Basic Math

Suppose a random sample of 10,000 individuals is askedto identify their favorite brand of soap among ten choices. Thefollowing results from the survey are obtained:

Observed
Brand Frequency

A           1200
B           900
C           850
D           1160
E              1020
F             975
G           1100
H           980
I            1035
J             780

Test the hypothesis that the preferences for eachbrand are equal (or uniform). Test this at the 0.05 level.

Answer & Explanation Solved by verified expert
4.1 Ratings (718 Votes)
For uniform distribution expected proportion 110 01The following table is obtainedCategoriesObservedExpectedfofe2feA1200100000110001200100021000 40B90010000011000900100021000 10C85010000011000850100021000 225D1160100000110001160100021000    See Answer
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