SOLUTION: 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
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Question 286404: 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?
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
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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?
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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Enter the 5 by 4 set of data into a matrix and run a Chi-Sq
Test on it. I used a TI calculator and got the following:
Ho: Row and Column factors are Independent
Ha: they are dependent
---
Test Statistic: Chi-Sq = 24.532
p-value: 0.0172..
-----------
Since the p-value is less than 5%, reject Ho.
Row and column factors are dependent
Cheers,
Stan H.
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