Question 141132This question is from textbook Applied Statistics in Business and Economics
: In this exercises, include MegaStat, Excel, or MINITAB exhibits to support your calculations.
State the hypotheses, show how the degrees of freedom are calculated, find the critical value of chisquare
from Appendix E or from Excel’s function =CHIINV(alpha, deg_freedom), and interpret the p-value.
Tell whether the conclusion is sensitive to the level of significance chosen, identify cells that contribute
the most to the chi-square test statistic, and check for small expected frequencies. If necessary, you can
calculate the p-value by using Excel’s function =CHIDIST(test statistic,deg_freedom). Note: Exercises marked
* are harder or require optional material.
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 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
This question is from textbook Applied Statistics in Business and Economics
Answer by stanbon(75887)   (Show Source):
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