In 2011, a U.S. Census report determined that 71% of college students work. A researcher thinks this percentage has changed since then. A survey of 110 college students reported that 91 of them work. Is there evidence to support the reasearcher's claim at the 1% significance level? A normal probability plot indicates that the population is normally distributed. a) Determine the null and alternative hypotheses. Но: Р Ha: p Select an answer v |(Put in the correct symbol and value) b) Determine the test statistic. Round to two decimals. = Z c) Find the p-value. Round to 4 decimals. P-value = d) Make a decision. O Fail to reject the null hypothesis Reject the null hypothesis e) Write the conclusion. O There is not sufficient evidence to support the claim that the percentage of college students who work is different than 71%. There is sufficient evidence to support the claim that the percentage of college students who work is different than 71%.

In 2011, a U.S. Census report determined that 71% of college students work. A researcher thinks this percentage has changed since then. A survey of 110 college students reported that 91 of them work. Is there evidence to support the reasearcher's claim at the 1% significance level? A normal probability plot indicates that the population is normally distributed. a) Determine the null and alternative hypotheses. Но: Р Ha: p Select an answer v |(Put in the correct symbol and value) b) Determine the test statistic. Round to two decimals. = Z c) Find the p-value. Round to 4 decimals. P-value = d) Make a decision. O Fail to reject the null hypothesis Reject the null hypothesis e) Write the conclusion. O There is not sufficient evidence to support the claim that the percentage of college students who work is different than 71%. There is sufficient evidence to support the claim that the percentage of college students who work is different than 71%.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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