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A random sample of 985 "likely voters"-those who are judged to be likely to vote in an upcoming election-were polled during a phone-athon conducted by the Republican Party. Of those contacted, 592 indicated that they intended to vote for the Republican running in the election.
a. According to this study, the estimate for p, the proportion of all "likely voters" who will vote for the Republican candidate, is p = .601. Find a bound for the error of estimation.
b. If the "likely voters" are representative of those who will actually vote, do you think that the Republican candidate will be elected? Why? How confident are you in your decision?
c. Can you think of reasons that those polled might not be representative of those who actually vote in the election?
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a chemical engineer wants to fit a straight line to the data found observing the tensile strength y of 10 test pieces
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What deccision should be made about the null hypothesis, and what decision should be made about the effect of the program.
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the temperature of an espresso drink which is normally distributed at a local coffee shop has a mean of 170 and a
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