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A company generally purchases large lots of a certain kind of electrical devices. A method is used that rejects a lot if two or more defective units are found in a random sample of 100 units.
a) What is the probability of rejecting a lot that is 1% defective?
b) What is the probability of accepting a lot that is 5% defective?
senior management of a consulting services firm is concerned about a growing decline in the firms weekly number of
Using a level of significance of .10, is there evidence that the dual degree students are receiving lower grades? Fully explain your answer.
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about 3 of the population has a particular genetic mutation. 500 people are randomly selected.find the mean for the
At the .05 level of significance, is there evidence that that the proportion of delayed Southwest Airlines departures from Phoenix in January 2008 is greater than 25%? State the decision in terms of the problem.
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the following two acceptance rules are being considered for determining whether to take delivery of a large shipment of
Defective components in a unit? further what is the probability in a unit(i)less then 3 components are defective? (ii)exactly 3 components are defective?
in a states pick 3 lottery game you pay 1.42 to select a sequence of three digits from 0 to 9 such as 411. if you
determine the point estimate of the population mean and margin of error for the confidence interval. lower bound is 16
Describe the relevant population and the source (e.g. newspaper, TV, radio, internet, etc.). Explain why you do not believe it is accurate.
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