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8.80 Paying for music downloads. If you use the Internet, have D you ever paid to access or download music? This was one MUSIC of the questions of interest in a recent Pew Internet and American Life Project Survey (Oct. 2010). In a representa- tive sample of 755 adults who use the Internet, 506 stated that they have paid to download music. Let p represent the true proportion of all Internet-using adults who have paid to download music. a. Compute a point estimate of p. b. Set up the null and alternative hypotheses for testing whether the true proportion of all Internet-using adults who have paid to download music exceeds .7. c. Compute the test statistic for part b. d. Find the rejection region for the test if a = .01. e. Find the p-value for the test. f. Make the appropriate conclusion using the rejection region. g. Make the appropriate conclusion using the p-value.

8.80 Paying for music downloads. If you use the Internet, have D you ever paid to access or download music? This was one MUSIC of the questions of interest in a recent Pew Internet and American Life Project Survey (Oct. 2010). In a representa- tive sample of 755 adults who use the Internet, 506 stated that they have paid to download music. Let p represent the true proportion of all Internet-using adults who have paid to download music. a. Compute a point estimate of p. b. Set up the null and alternative hypotheses for testing whether the true proportion of all Internet-using adults who have paid to download music exceeds .7. c. Compute the test statistic for part b. d. Find the rejection region for the test if a = .01. e. Find the p-value for the test. f. Make the appropriate conclusion using the rejection region. g. Make the appropriate conclusion using the p-value.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
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8.80 Paying for music downloads. If you use the Internet, have D you ever paid to access or download music? This was one MUSIC of the questions of interest in a recent Pew Internet and American Life Project Survey (Oct. 2010). In a representa- tive sample of 755 adults who use the Internet, 506 stated that they have paid to download music. Let p represent the true proportion of all Internet-using adults who have paid to download music. a. Compute a point estimate of p. b. Set up the null and alternative hypotheses for testing whether the true proportion of all Internet-using adults who have paid to download music exceeds .7. c. Compute the test statistic for part b. d. Find the rejection region for the test if a = .01. e. Find the p-value for the test. f. Make the appropriate conclusion using the rejection region. g. Make the appropriate conclusion using the p-value.
Transcribed Image Text:8.80 Paying for music downloads. If you use the Internet, have D you ever paid to access or download music? This was one MUSIC of the questions of interest in a recent Pew Internet and American Life Project Survey (Oct. 2010). In a representa- tive sample of 755 adults who use the Internet, 506 stated that they have paid to download music. Let p represent the true proportion of all Internet-using adults who have paid to download music. a. Compute a point estimate of p. b. Set up the null and alternative hypotheses for testing whether the true proportion of all Internet-using adults who have paid to download music exceeds .7. c. Compute the test statistic for part b. d. Find the rejection region for the test if a = .01. e. Find the p-value for the test. f. Make the appropriate conclusion using the rejection region. g. Make the appropriate conclusion using the p-value.
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