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Unformatted text preview: Solve the problem. 1. A researcher is interested in estimating the proportion of voters who favor a tax on ecommerce. Based on a sample on 250 people, she obtains the following 99% confidence interval for the population proportion p: 0.113 < p < 0.171 Which of the statements below is a valid interpretation of this confidence interval? A: If many different samples of size 250 were selected and, based on each sample, a confidence interval were constructed, 99% of the time the true value of p would lie between 0.113 and 0.171. B: If 100 different samples of size 250 were selected and, based on each sample, a confidence interval were constructed, exactly 99 of these confidence intervals would contain the true value of p. C: If many different samples of sixe 250 were selected and, based on each sample, a confidence interval were constructed, in the long run 99% of the confidence intervals would contain the true value of p. D: There is a 99% chance that the true value of p lies between 0.113 and 0.171. The Precision Scientific Instrument Company manufacturers thermometers that are supposed to give readings of 0 C at the freezing point of water. Tests on a large sample of these thermometers reveal that at the freezing point of water, the freezing point of water....
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This note was uploaded on 04/28/2010 for the course MATH 1580 taught by Professor Roth during the Spring '10 term at Oakland CC.
 Spring '10
 Roth
 Statistics

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