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Using a computer to play many simulated games of Scrabble, researcher Charles Robinove found that the letter A occurred in 54% of the hands. This study had a margin of error of ±10%. (Chance, 15, no. 1 [2002])
a) Explain what the margin of error means in this context.
b) Why might the margin of error be so large?
c) Probability theory predicts that the letter A should appear in 63% of the hands. Does this make you concerned that the simulation might be faulty? Explain.
Consider the Markov chain whose state at any time is the vector (n1, ... , nm) where ni denotes the number of balls in urn i. Guess at the limiting probabilities for this Markov chain and then verify your guess and show at the same time that the M..
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The 99% confidence interval estimating the proportion of all students at the university who prefer outdoor exercise is given by which of the following?
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q1.the gallup organization contacts 1709 adult men who are 40 to 60 yrs of age and live in the united states and asks
Calculate probability that the sample would have a mean:
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Give a 95% and a 98% con?dence interval for the proportion of support for the president.
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