Answered: a. The table below show the proportion…

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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a. The table below show the proportion of men and women who plan to vote in the next election. Three hundred men and 300 women were randomly selected and asked whether they planned to vote in the next election.

	men	women
plan to vote	170	185
do not plan to vote	130	115

What is the relative risk (likelihood) that men will vote versus men will not vote?

a.1.567

b. 1.308

c. 0.583

d. 1.433

e. 0.764

b. During a poll, 115 people were randomly selected and asked their political party affiliation. The contingency table below shows the results cross-classified by political party affiliation and sex.

	Democrat	Republican	other	total
male	16	23	25	64
female	28	12	11	51
total	44	35	35	115

Find the conditional distribution of Republicans who are men.

a. 0.557

b. 0.657

c. 0.20

d. 0.359

e. 0.25

For the given sample data and null hypothesis, compute the value of the test statistic. The claim is that the proportion of drowning deaths of children attributable to beaches is more than 0.25, and the sample statistics include n = 615 drowning deaths of children with 30% of them attributable to beaches.

a. 0.25

b. -2.86

c. -2.71

d. 2.86

e. 2.71

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