Schadek Silkscreen Printing Inc. purchases plastic cups on which to print logos for sporting events, proms, birthdays,
Question:
a. What is the estimated proportion defective in the population?
b. Develop a 95% confidence interval for the proportion defective.
c. Zack has an agreement with his supplier that he is to return lots that are 10% or more defective. Should he return this lot? Explain your decision.
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Related Book For
Basic Statistics For Business And Economics
ISBN: 9780073521473
8th Edition
Authors: Douglas Lind, William Marchal, Samuel Wathen
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