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In a poll taken among college students, 300 of 500 fraternity men favored a certain proposition whereas 64 of 100 nonfraternity men favored it. Estimate the difference in the proportions favoring the proposition and place a 2-standard-deviation bound on the error of estimation.
let x be the number of uninsured drivers in a random sample of 100 drivers.if 33 of all licensed drivers do not have
Draw a tree diagram to show all possible outcomes of the experiment. Label the probability associated with each stage of the experiment on the appropriate branch.
What should ING's General Counsel do to minimize ING's expected costs?
A makes a mistake in an order (gets an item wrong or the wrong quantity) one time in a hundred, B makes a mistake in an order five times in a hundred and C makes a mistake in an order three times in a hundred. If A, B and C fill respectively 30, ..
a pair of dice is rolled 270 times. using the normal curve approximation what is the probability that a total of 7
Population have at least some college education. choose 10 persons at random. Find the probability that at least 5 do not have any college education.
A box in a certain supply room contains four 40 w light bulbs, five 60-W bulbs, and six 75-W bulbs. If two are randomly selected from the box and at least one of them is found to be rated 75-W.what is the probability that both of them are 40- W bu..
a spymaster has a network of 7 operatives whom he pays out of a slush fund containing 20000. for accounting reasons his
At a significance level of .05, the management wants to perform a hypothesis test to determine whether the quality of items produced appears to be independent of the production process used. Calculate the expected number of defective units produce..
If the ball is red put it back into the urn. If the ball is black, replace it with a red ball. Let X be the number of picks needed to get the fourth black ball. Find E[X].
A group of 200 adults aged 21 to 50 were chosen from those entering Fit Right Health stores in Washington State, and were randomly divided in two groups.
prepare a report for the dean of the college that summarizes your assessment of the nature of cheating by business
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