5. A sample of 500 male registered voters showed that 57% of them are in a favor ofhigher taxes on wealthy people. Another sample of 400 female registered voters showedthat 54% of them are in favor of higher taxes on wealthy people. Test at the 1%significance level if the proportion of all male voters who are in favor of higher taxes onwealthy people is not different from that of female voters against two-sided alternative. A company claims that the course it offers significantly increases the writing speed ofsecretaries. The following table gives the scores of 8 secretaries before and after theyattended this courseBefore x,2.32.8 3.12.73.42.62.8 2.5After y,2.63.2 3.03.53.72.42.92.9Test at the 5% significance level if there is an improvement in the job performances ofemployees due to hypnosis.Assume that the population of paired differences is (approximately) normallydistributed.

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A hypothesis test can be used to compare the proportion of two independent population. The standard…

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5. A sample of 500 male registered voters showed that 57% of them are in a favor of higher taxes on wealthy people. Another sample of 400 female registered voters showed that 54% of them are in favor of higher taxes on wealthy people. Test at the 1% significance level if the proportion of all male voters who are in favor of higher taxes on wealthy people is not different from that of female voters against two-sided alternative.

5. A sample of 500 male registered voters showed that 57% of them are in a favor of higher taxes on wealthy people. Another sample of 400 female registered voters showed that 54% of them are in favor of higher taxes on wealthy people. Test at the 1% significance level if the proportion of all male voters who are in favor of higher taxes on wealthy people is not different from that of female voters against two-sided alternative.

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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