Question 187983: The textbook is Applied Statistics by Doane and Seward 2007
ISBN # 978-0-07-296693-0
Chapter 15
15.22 A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location. Research question: At α = .05, does vehicle type vary by mall location? (Data are from a project by MBA students Steve Bennett, Alicia Morais, Steve Olson, and Greg Corda.) Vehicle
Vehicle Type Somerset Oakland Great Lakes Jamestown Row /Total
Car 44 49 36 64 193
Minivan 21 15 18 13 67
Full-sized Van 2 3 3 2 10
SUV 19 27 26 12 84
Truck 14 6 17 9 46
Col Total 100 100 100 100 400
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location. Research question:
At α = .05, does vehicle type vary by mall location? (Data are from a project by MBA students Steve Bennett, Alicia Morais, Steve Olson, and Greg Corda.) Vehicle
Vehicle Type Somerset Oakland Great Lakes Jamestown Row /Total
Car............ 44...... 49......... 36....... 64........ 193
Minivan........ 21...... 15......... 18....... 13......... 67
Full-sized Van.. 2....... 3.......... 3........ 2......... 10
SUV............ 19...... 27......... 26........12..........84
Truck.......... 14....... 6......... 17........ 9......... 46
Col Total..... 100..... 100........ 100...... 100........ 400
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Ho: Row and column factors are independent
Ha: Row and column factors are dependent
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Run a Chi-Sq Test on the 5 by 4 set of data to get:
Chi-Sq = 24.53
p-value = 0.0172
df = (4*3) = 12
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Conclusion:
Since the p-value is less than 5%, reject Ho.
The Row and column factors are dependent ; vehicle type
varies by location.
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Cheers,
Stan H.
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