Which of the following statements involve inferential statistics as opposed to descriptive statistics?

A.     Based on a survey of 400 magazine readers, the magazine reports that 45% of it readers prefer double column articles

B.     The FAA samples 500 traffic controllers in order to estimate the percent retiring due to job stress related illness

C.     Based on a sample of 300 professional tennis players, a tennis magazine reported that 25% if the parents of all professional tennis players did not play tennis

D.     The admission’s office in a southern university samples 200 college students in business in order to estimate the percentage of business majors who prefer accounting to economics.

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