{Exercise 12.4} Benson Manufacturing is considering ordering electronic componen
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Question
{Exercise 12.4}
Benson Manufacturing is considering ordering electronic components from three different suppliers. The suppliers may differ in terms of quality in that the proportion or percentage of defective components may differ among the suppliers. To evaluate the proportion defective components for the suppliers, Benson has requested a sample shipment of 500 components from each supplier. The number of defective components and the number of good components found in each shipment is as follows.
a. Formulate the hypotheses that can be used to test for equal proportions of defective components provided by the three suppliers.
Choose correct answer from above choice
_________________
H a: _________________
b. Using a .05 level of significance, conduct the hypothesis test. What is the p-value?
The p-value is _________________
What is your conclusion?
_________________
c. Conduct a multiple comparison test to determine if there is an overall best supplier or if one supplier can be eliminated because of poor quality. Round p i, p j and difference to two decimal places. Round critical value to four decimal places.
Supplier Component A B C Defective 15 35 45 Good 485 465 455Explanation / Answer
{Exercise 12.4} Benson Manufacturing is considering ordering electronic componen
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