Multiple Choice
A researcher would like to test the claim that 9 out of 10 doctors prefer Brand X.A sample of 60 doctors is obtained and each is asked to compare Brand X with another leading brand.The data show that 48 of the doctors picked Brand X.If these data are evaluated using a chi-square test for goodness of fit,what is the expected frequency for Brand X?
A) 6
B) 12
C) 48
D) 54
Correct Answer:
Verified
Correct Answer:
Verified
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