You are the production manager for a part manufacturing company. There are 2 manufacturing locations, plant...

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You are the production manager for a part manufacturing company.There are 2 manufacturing locations, plant A and B. you suspectthere is a difference in the proportion of rejected parts that aremanufactured at Plant A as compared to plant B. for a week youobserved:
Plant A
Plant B
total
Rejected parts
120
80
200
Acceptable parts
1880
1920
3800
2000
2000
4000
The proportion of rejected parts was200/4000=5%. If there were no difference between the proportion ofrejected parts whether there were manufactured at either plant A orplant B then you would estimate:
Plant A
Plant B
total
Rejected parts
200
Acceptable parts
3800
2000
2000
4000
You decide to preform a chi squaredtest to determine if there is statistically a difference betweenthe proportion of rejected parts manufactured at plant A ascompared to the proportion of rejected parts manufactured at plantB.
State your null and alternate hypothesis. B) at the 5% level ofsignificance, is there evidence of a difference between theproportions of rejected parts manufactured at plant A as comparedto plant B? based on your hypothesis test what is your conclusion?State your conclusion formally.

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ou are the production manager for a part manufacturing companyThere are 2 manufacturing locations plant A and B you suspectthere is a difference in the proportion of rejected parts that aremanufactured at Plant A as compared to plant B for a week youobservedPlant APlant BtotalRejected parts12080200Acceptable parts188019203800200020004000The proportion of rejected parts See Answer

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	Plant A	Plant B	total
Rejected parts	120	80	200
Acceptable parts	1880	1920	3800
	2000	2000	4000