1 5.18 Sixty-four students in an introductorycollege economics class were asked

Question

15.18 Sixty-four students in an introductorycollege economics class were asked how many credits they

had earned in college, and how certain they were about theirchoice of major. Research question:

At = .01, is the degree of certainty independent ofcredits earned? Certainty

15.22 A student team examined parked cars in four differentsuburban shopping malls. One hundred vehicles

were examined in each location. Research question: At =.05, does vehicle type vary by

mall location? (Data are from a project by MBA students SteveBennett, Alicia Morais, Steve

Olson, and Greg Corda.) Vehicles

Explanation / Answer

1 5.18 Sixty-four students in an introductorycollege economics class were asked

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