If we want to detect small process shifts using x bar chart, we should use a sample size of:
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Less than 5
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5-10
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10-15
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For an ideal OC curve the probability of acceptance for lot fraction defective less than .01 is ______________.
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Equal to 1
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Less than 1
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Greater than 1
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In ______________ step of Quality Function Deployment, product or service requirements are collected and analyzed through techniques like market research.
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Identify Customer Attributes
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Identify Design Attributes / Requirements
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Conduct an Evaluation of Competing Products.
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In a double sampling plan, let d1 be the number of defects in the first sample and d2 be the number of defects in the second sample. Let c2 be the acceptance number for both samples. The condition for rejection is:
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D1+d2<c2
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D1+d2>c2
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D1∗d2>c2
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The Operating characteristic curve shows the relationship between the probability of acceptance (on y axis) and ______________ (on x axis).
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Proportion defective
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Proportion acceptable
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Number of lots
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For a c chart, the OC curve plots the ______________ against ______________.
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Probability of Type 2 error, true mean number of defects
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Probability of Type 1 error, true mean number of defects
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Probability of Type 1 error, true total number of defects
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