CHALLENGE АCTIVITY 5.8.1: Hypothesis test for the difference between two population proportions. Jump to level 1 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 397 supported raising the minimum wage. In city 2, a poll of 1000 randomly selected voters found that 456 supported raising the minimum wage. What type of hypothesis test should be performed? Select P1 = Ex 0.123 P2 = Ex 0.123 %3D %3D 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 œ = 0.01 significance level? Select

CHALLENGE АCTIVITY 5.8.1: Hypothesis test for the difference between two population proportions. Jump to level 1 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 397 supported raising the minimum wage. In city 2, a poll of 1000 randomly selected voters found that 456 supported raising the minimum wage. What type of hypothesis test should be performed? Select P1 = Ex 0.123 P2 = Ex 0.123 %3D %3D 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 œ = 0.01 significance level? Select

Name: What type of hypothesis test should be performed? Ex: Left-tailed t-te
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Description: What type of hypothesis test should be performed? Ex: Left-tailed t-test, two-tailed t-test, two-tailed z-test, or right-tailed z-testP1 = Ex: 0.123P2 = Ex: 0.123P = Ex: 0.123What is the test statistic? Ex: 0.12P-value? Ex: 0.123Does sufficient evide

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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Question #4. US Universities found that 72% of people are concerned about the possibility that their personal records could be stolen over the Internet. If a random sample of 300 college students at a Midwestern university were taken and 228 of them were concerned about the possibility that their personal records could be stolen over the Internet, could you conclude at the 0.025 level of significance that a higher proportion of the university's college students are concerned about Internet theft than the public at large? Report the p-value for this test. Z0.025 = 1.96
A student decides to spin a dime and determine the proportion of times it lands on heads. The student spins the dime 25 times and records that it lands on heads 17 times. Let p = the true proportion of times the dime would land on heads when spun. Under the assumption that the true proportion is 0.5, 100 simulated proportions for samples of size 25 is shown in the dotplot. Using the dotplot, is there evidence that the proportion of times a spun dime lands on heads is greater than 0.5? A) Yes, a proportion of 0.68 proves that the true proportion of heads is greater than 0.5. B) Yes, a proportion of 0.68 only occurred once out of 100 simulated proportions; therefore, there is sufficient evidence that the true proportion of heads is greater than 0.5. C) No, a proportion of 0.68 is only 0.18 more than 0.5; therefore, there is insufficient evidence that the true proportion of heads is greater than 0.5. D) No, a proportion of 0.68 or more occurred 7 times out of 100 simulated…
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