Question 133505: Please help, I don't have an ISBN number because its an online course.
A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location. At alph=.05, does vehicle type vary by mall location? State hypothesis, show degree of freedom, find critical value of chisquare and interpret p-value.
Vehicle type,Somerset,Oakland,Greatlakes,Jamestown,Row Total
Car,44,49,36,64,193
Minivan,21,15,18,13,67
Full-sizedVan,2,3,3,2,10
SUV,19,27,26,12,84
Truck,14,6,17,9,45
Col Total,100,100,100,100,400
Thank you in advance.
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. At alph=.05, does vehicle type vary by mall location?
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State hypothesis
Ho: vehicle type and mall location are independent
Ha: they are dependent
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show degree of freedom
(5-1)(4-1) = 12
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find critical value of chisquare
critical value for two-tail Chi-Sq test with alpha = 5% and df=12
4.404 and 23.337
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and interpret p-value
p-value = 0.0172
Only 0.0172 of test results could give stronger support for rejecting Ho.
p-value is less that 5% so reject Ho
vehicle type and mall location are dependent.
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Cheers,
Stan H.
Vehicle type,Somerset,Oakland,Greatlakes,Jamestown,Row Total
Car,44,49,36,64,193
Minivan,21,15,18,13,67
Full-sizedVan,2,3,3,2,10
SUV,19,27,26,12,84
Truck,14,6,17,9,45
Col Total,100,100,100,100,400
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