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Question: A lot of n items contains k defectives, and m are selected randomly and inspected. How should the value of m be chosen so that the probability that at least one defective item turns up is .90? Apply your answer to (a) n = 1000, k = 10, and (b) n = 10,000, k = 100.
a sociologist wanted to study if divorce rates within the first year of marriage were any different in illinois than
question there are three cards in a box. both sides of one card are black both sides of one card are red and the third
1.i want to know which of two manufacturing methods will be better. i create 10 prototypes using the first process and
According to a national CNN/USA/Gallup survey of 1,025 adults, conducted March 14-16, 2008, 63% say they have experienced a hardship because of rising gasoline.
1. what information does calculating standard deviation provide? how is the z-score related to standard deviation?2.
For the system in Exercise I, call a day in which one or more failures occur among the 350 lamps a "service day." Since a Bernoulli sequence "starts over".
In Example, the information given was that 3% of a nationwide randomly selected sample of n = 883 suffered from severe allergies.
The mean number of chocolate chips per cookie is 6.1. What is the probability that she will find less than 5 chips in a particular cookie?
causality and inferencein may 1998 the new york times carried an article by adam bryant describing a research project
A manufacturer produces and sells chilled, ready-to-eat pasta salad in round lots of 50 serving units each. These items have a very limited shelf life; therefore, if items are made but not sold, they have no value.
student of business is interested in estimating a 99 confidence interval for the proportion of students who bring
A professor tests whether the loudness of noise during an exam (low, medium, high) is independent of exam grades (pass, fail).
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