A U.S. based internet company offers an online proficiency course in basic accou

Question

A U.S. based internet company offers an online proficiency course in basic accounting. Completing this online course satisfies the "Fundamentals of Accounting" course requirement in many MBA programs. In the first semester, 315 students have enrolled in the course. The marketing research manager divided the country into seven regions of approximately equal population. The course enrollment values for each of the seven regions are given below. The management wants to know if there is equal interest in the course across all regions. Calculate the expected enrollment (frequency) for all 7 regions. Test the hypothesis that there is equal interest across the country. (alpha = .05) What is the p-value of the test?

Explanation / Answer

R Code:

ObsF <- c(45,60,30,40,50,55,35)
mean=mean(ObsF)
mean
ExpP <- c(rep(1/7,7))
chisq.test(ObsF,p=c(rep(1/7,7)))

Output:

   Chi-squared test for given probabilities

data: ObsF
X-squared = 15.556, df = 6, p-value = 0.01635

Mean=Exp enrollment=45

p-value=0.01635

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