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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. Ho: P = Ha: p Select an answer ✓ b) Determine the test statistic. Round to two decimals. 2 = c) Find the p-value. Round to 4 decimals. P-value = d) Make a decision. (Put in the correct symbol and value)

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. Ho: P = Ha: p Select an answer ✓ b) Determine the test statistic. Round to two decimals. 2 = c) Find the p-value. Round to 4 decimals. P-value = d) Make a decision. (Put in the correct symbol and value)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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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. Ho: P = Ha:p Select an answer 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. Reject the null hypothesis O Fail to reject the null hypothesis (Put in the correct symbol and value) e) Write the conclusion. O There is sufficient evidence to support the claim that the percentage of college students who work is different than 71%. There is not sufficient evidence to support the claim that the percentage of college students who work is different than 71%.
Transcribed Image Text: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. Ho: P = Ha:p Select an answer 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. Reject the null hypothesis O Fail to reject the null hypothesis (Put in the correct symbol and value) e) Write the conclusion. O There is sufficient evidence to support the claim that the percentage of college students who work is different than 71%. There is not sufficient evidence to support the claim that the percentage of college students who work is different than 71%.
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