A political campaign is interested in whether a geographic difference existed in support for raising the minimum wage in a certain state. Polls were conducted in the two largest cities in the state about raising the minimum wage. In city 1, a poll of 800 randomly selected voters found that 214 supported raising the minimum wage. In city 2, a poll of 1000 randomly selected voters found that 248 supported raising the minimum wage. What type of hypothesis test should be performed? Select P1 = Ex: 0.123 P2 = Ex: 0.123 p = Ex: 0.123 Test statistic = Ex: 0.12 p-value = Ex: 0.123 Does sufficient evidence exist to support the claim that the level of support differs between the two cities at the a = 0.05 significance level? Select v

A political campaign is interested in whether a geographic difference existed in support for raising the minimum wage in a certain state. Polls were conducted in the two largest cities in the state about raising the minimum wage. In city 1, a poll of 800 randomly selected voters found that 214 supported raising the minimum wage. In city 2, a poll of 1000 randomly selected voters found that 248 supported raising the minimum wage. What type of hypothesis test should be performed? Select P1 = Ex: 0.123 P2 = Ex: 0.123 p = Ex: 0.123 Test statistic = Ex: 0.12 p-value = Ex: 0.123 Does sufficient evidence exist to support the claim that the level of support differs between the two cities at the a = 0.05 significance level? Select v

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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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Given: A political campaign is interested in whether city 1 has less support for raising the minimum wage than city 2. Polls were conducted in the two largest cities in the state about raising the minimum wage. In city 1, a poll of 800 randomly selected voters found that 449 supported raising the minimum wage. In city 2, a poll of 1000 randomly selected voters found that 506 supported raising the minimum wage. a. What type of hypothesis test should be performed? (right-tailed z-test, left-tailed t-test, two-tailed t-test, or left-tailed z-test) b. p^1= c. p^2= d. p^= e. Test statistic (z)= f. p-value = g. Does sufficient evidence exist to support the claim that the level of support in city 1 is lower than that of city 2 at the α=0.1 significance level? (yes or no)
A movie based on a best-selling novel was recently released. Six hundred viewers of the movie, 235 of whom had previously read the novel, were asked to rate the quality of the movie. The survey showed that 141 of the novel readers gave the movie a rating of excellent, while 248 of the non-readers gave the movie an excellent rating. Can we conclude, on the basis of a hypothesis test about p1 – p2, that the proportion of the non-readers of the novel who thought the movie was excellent is greater than the proportion of readers of the novel who thought the movie was excellent? Use a 0.05 level of significance. (Hint: This is a one-tailed test.)
Given: A political campaign is interested in whether a geographic difference existed in support for raising the minimum wage in a certain state. Polls were conducted in the two largest cities in the state about raising the minimum wage. In city 1, a poll of 800 randomly selected voters found that 215 supported raising the minimum wage. In city 2, a poll of 1000 randomly selected voters found that 221 supported raising the minimum wage. a. What type of hypothesis test should be performed? (right-tailed z-test, right-tailed t-test, left-tailed z-test or two-tailed t-test) b. p^1= c. p^2= d. p^= e. Test statistic(z) = f. p-value = g. Does sufficient evidence exist to support the claim that the level of support differs between the two cities at the α=0.1 significance level? (yes or no)
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A movie based on a best-selling novel was recently released. Six hundred viewers of the movie, 235 of whom had previously read the novel, were asked to rate the quality of the movie. The survey showed that 141 of the novel readers gave the movie a rating of excellent, while 248 of the non-readers gave the movie an excellent rating. b. Can we conclude, on the basis of a hypothesis test about p1 – p2, that the proportion of the non-readers of the novel who thought the movie was excellent is greater than the proportion of readers of the novel who thought the movie was excellent? Use a 0.05 level of significance. (Hint: This is a one-tailed test.) Choices: H0: pNR – pR ≤ 0; z = 2.274 > 1.645; p-value = 0.0815 < .05; reject H0 H0: pNR – pR ≤ 0; z = 2.274 > 1.645; p-value = 0.0115 < .05; accept H0 H0: pNR – pR ≤ 0; z = 2.274 > 1.645; p-value = 0.0115 < .05; reject H0 H0: pNR – pR ≤ 0; z = 3.274 > 1.645; p-value = 0.0115 < .05; reject H0
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Two observational studies of handwashing times were conducted with 59 men and 59 women. Of the 59 men, 19 were observed not washing their hands. Of the 59 women, 8 were observed not washing their hands. Let p1 population proportion of women not washing their hands, and p2 population proportion of men not washing their hands. The claim is that women are 50% more likely to wash their hands than men. The hypothesis is, Null hypothesis: H0:p1-p2≤0.50 Alternative hypothesis: Ha:p1-p2>0.50 Test the hypothesis and determine the significance using a two proportion z-test.