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Is there a relationship between the maintenance cost and the manufacturer of the bus? Use the...

Is there a relationship between the maintenance cost and the manufacturer of the bus? Use the 0.05 significance level. (chi-square)

Contingency Table (Observed)
Low Maint. High Maint. Total
Keiser 12 13 25
Thompson 6 2 8
Bluebird 22 25 47
Total 40 40 80
Math   Statistics-And-Probability   
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