29. Need College? Is college necessary? About 50% of Californians think that it is not, citing mounting

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29. Need College? Is college necessary? About 50% of Californians think that it is not, citing mounting costs and large student debts.15 A random sample of 25 Californians is selected and assume that the p5.5 figure is correct. Let x be the number who believe that college is not important.

a. What is the probability distribution for x?

b. What is P(x$17)?

c. What is the largest value of c for which P(x#c)#.05?

d. If you observed 6 or fewer people in the sample who think that college is not important, would this be an unlikely event? Explain.

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Introduction To Probability And Statistics

ISBN: 9780357114469

15th Edition

Authors: William Mendenhall Iii , Robert Beaver , Barbara Beaver

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