ChiSquare - Test of Independence

Question 20 (4 points)

DATA contains Part Quality data of three Suppliers. At = 0.05, does Part Quality depend on Supplier, or should the cheapest Supplier be chosen?

Question 20 options:

	Pvalue of 0.008 rejects the assumption of independence of Part Quality and Supplier. Further supplier evaluation is recommended.
	Pvalue of 0.0008 rejects the assumption of independence of Part Quality and Supplier. Further supplier evaluation is recommended.
	The assumption of independence of Part Quality and Supplier cannot be rejected. Choose the cheapest Supplier.
	Pvalue of 0.039 rejects the assumption of independence of Part Quality and Supplier. Further supplier evaluation is recommended.
	None of the answers fit the data.

Hide hint for Question 20
Test independence of Supplier and Part Quality.

	Part Quality
Supplier	Good	Minor Defect	Major Defect
A	100	5	8
B	160	22	4
C	150	7	11