This OC Curve Represents a Sampling Plan Developed for a Lot

question 82

Multiple Choice

This OC curve represents a sampling plan developed for a lot size of 1000,a sample size of 15,and an acceptance number of 2.The probability of acceptance for each of the first six points appears next to the plotted point.What is the average outgoing quality for an incoming fraction defective of 0.25?

• A)less than 0.045
• B)greater than or equal to 0.045 but less than 0.055
• C)greater than or equal to 0.055 but less than 0.065
• D)greater than or equal to 0.065

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Definitions:

Margin Of Error

An estimate of the amount by which an observed sample result may differ from the true value, providing a confidence interval for the estimation.

Statistic

A numerical characteristic or measure of a sample extracted from a larger population.

Student T Distributed

A probability distribution used in statistical analysis when the sample size is small and the population variance is unknown.

Randomly Selected

A method of selection that ensures each item or person has an equal chance of being chosen, aiming to eliminate bias.