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

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Description: In 2011, a U.S. Census report determined that 71% of college students work. A researcher thinks thispercentage has changed since then. A survey of 110 college students reported that 91 of them work. Isthere evidence to support the reasearcher's clai

Solution: Given information: n= 110 Sample size of college students x= 91 college students work…

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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 1: p Select an answer v (Put in the correct symbol and value) -) Determine the test statistic. Round to two decimals. O Find the p-value. Round to 4 decimals. -value = O Make a decision. O Fail to reject the null hypothesis O Reject the null hypothesis Write the conclusion. O There is not sufficient evidence to support the claim that the percentage of college students who work is different tban 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. Ho: P 1: p Select an answer v (Put in the correct symbol and value) -) Determine the test statistic. Round to two decimals. O Find the p-value. Round to 4 decimals. -value = O Make a decision. O Fail to reject the null hypothesis O Reject the null hypothesis Write the conclusion. O There is not sufficient evidence to support the claim that the percentage of college students who work is different tban 71%

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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Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.

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Question

100%

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 =
H.: 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
O 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%.

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