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Question: Suppose that of a population of N items, k are defective in some way. For example, the items might be documents, a small proportion of which are fraudulent. How large should a sample be so that with a specified probability it will contain at least one of the defective items? For example, if N = 10,000, k = 50, and p = .95, what should the sample size be? Such calculations are useful in planning sample sizes for acceptance sampling.
The dowser correctly identifies the contents of 12 out of 20 containers. Do you think this level of success is statistically significant? Explain.
Refer to the CDI data set in Appendix C2 and Project 19.53. The metropolitan areas identified in Project 19.53 are to be considered in a study of the effects of region (factor A: variable 17) and percent below poverty level (factor B: variable 13) ..
Find how large a sample must be drawn in order to be 90 percent confident that the sample mean will not differ from the population mean by more than 3.7 pounds.
The U.S. government spent more than $2.5 trillion in the 2006 fiscal year. How is this incredible sum of money spent? The following table provides broad categories which demonstrate the expenditures of the Federal government for domestic and defen..
in a trail of 160 patients who received 10-mg doses of a drug daily 40 reported headaches as a side effect. answer a
Diagnosis tests of medical conditions have several results. The test result can be positive or negative, whether or not a patient has the condition.
Thomas is going to make an open-top box by cutting equal squares from the four corners of an 11 inch by 14 inch sheet of cardboard and folding up the sides.
the senior executive of a publishing firm would like to train employees to read faster than 1000 words per minute. a
suppose a manufacturing company makes a certain item. the time to produce each item is normally distributed around a
Using Coefficient of Variation determine in which year do the ages show a more dispersed distribution? Show your complete work and support your answer.
Standard deviation of 6.9 centimeters.assuming that the heights are recorded to the nearest half-cm, how many of these students would you expect to have heights less than 160.0 centimeters.
a recent survey reported that in a sample of 300 students who attend two-year colleges 105 work at least 20 hours per
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