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1. How does changing the sample size affect the centerline and the control limits of a p-chart?
2. What are the advantages and disadvantages of the standardized p-chart as compared to the regular proportion-nonconforming chart?
3. Discuss the assumptions that must be satisfied to justify using a p-chart. How are they different from the assumptions required for a c-chart?
to evaluate the success of a 1-year experimental program designed to increase the mathematical achievement of
question a study wants to determine if taking fish oils can reduce depressive symptoms. a group of 50 volunteers who
Standard deviation of the sampling distribution of sample proportion is 0.025. However, the report did not indicate what the sample size n was. What was it?
a sample of size 200 from population 1 has 50 successes. a sample of size 200 from population 2 has 40 successes. what
Solve the model by using graphical analysis.
At the .05 significance level, is the number of units produced on the afternoon shift larger?
A professor is targeting a score of 80 on an exam. His forty-nine students averaged 78 on an exam with s = 7. Are the scores significantly less than 80 at a significance level of 0.05? Show your work and state the conclusion.
He randomly selects a sample of 10 items of the procduct from a large lot ready to be shipped. He (given that) the true proportion of perfect condition items is only 80% what is the probability that the lot will not be shipped?
you take a sample of 22 from a population of test scores and the mean of your sample is 60. a you know the standard
a maker of a certain brand of low fat cereal bars claims the average saturated fat content is 0.5 grams. to check the
a fair 20-sided die is rolled 120 times and the value of chi-square is computed using expected counts of 6 for each
Calculation of Employees Productivity
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