T/275T: Statistic X zy Section 5.5 - QNT/275T: Statistics XT_56598163/chapter/5/section/5qx3zay7cs for Decision Making home >erence between two population proportions5.5. 1. HYPOTHESIS TEST FOR THe difference between two population proportions.Jump to level 1Test statistic = Ex: 0.12A political campaign is interested in whether a geographic difference existed in supportfor raising the minimum wage in a certain state. Polls were conducted in the two largestcities in the state about raising the minimum wage. In city 1, a poll of 800 randomlyselected voters found that 510 supported raising the minimum wage. In city 2, a poll of1000 randomly selected voters found that 602 supported raising the minimum wage.What type of hypothesis test should be performed? Two-tailed z-test v℗1 = 0.637P2p = 0.617p-value = Ex: 0.123Check+Does sufficient evidence exist to support the claim that the level of support differsSelect vbetween the two cities at the a = 0.1 significance level?1CTry againTH0.602X Set an answer for each input. See highlighted.E

It is of interest to test the claim that the level of support differs between the two cities…

Answered: A political campaign is interested in…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A private and a public university are located in the same city. For the private university, 1046 alumni were surveyed and 653 said that they attended at least one class reunion. For the public university, 791 out of 1327 sampled alumni claimed they have attended at least one class reunion. Is the difference in the sample proportions statistically significant at the 1% level? (Null and Alternate Hypothesis and Rejection Region) [Group 1: Private University; Group 2: Public University] A. Ho: p1 = p 2; Ha: p 1 < p 2; Rejection Region: z < -2.33 B. Ho: p 1 = p 2; Ha: p 1 < p 2; Rejection Region: z < -1.64 C. Ho: p 1 = p 2; Ha: p 1 > p 2; Rejection Region: z > 2.33 D. Ho: p 1 = p 2; Ha: p 1 ≠ p 2; Rejection Region: z < -2.58 or z > 2.58 E. Ho: p 1 = p 2; Ha: p 1 ≠ p 2; Rejection Region: t < -3.02 or t > 3.02 (Test Statistic) A. z = 1.372 B. z = 1.398 C. z = 69.517 D. z = 1.400 E. z = 6.508 (p-value and conclusion) A. p = 0.919; RHo (Sufficient evidence…
A tourist company did a survey to determine if more New Yorkers or more Californians recognize a certain type of giraffe. Of the 583 New Yorkers surveyed, 198 knew the type of giraffe while 188 out 641 Californians knew the type of giraffe. At the 0.1 significance level, test the claim that the recognition rates of a certain type of giraffe are the same in both states. What are the correct hypotheses? (Select the correct symbols and values.)
A rescue claims that 30% of u.s. households have a dog. In a random sample of 210 u.s. households, 35% say they own a dog. Is there enough evidence to show the percentage has increased? Identify the appropriate null and alternative hypothesis. A) H0: p=0.35 vs Ha:p<0.35 B) H0: p=0.30 vs Ha:p>0.30 C) H0: p=0.30 vs Ha: p<0.30 D) H0: p=0.35 vs Ha:p>0.35
a) Which of the following correctly specifies the null hypothesis? [select all that apply] b) Which of the following correctly specifies the alternative hypothesis? [select all that apply] c) Calculate and report the standard error for the sampling distribution for the difference in means.
Define the related-repeated (pre/post) two-sample t-test and the related-matched two-sample t-test.
b) What is the observed value of the test statistic for the appropriate hypothesis test? Give answer to 3 decimal places.c) What is the p-value associated to the observed test statistic you have just computed? Give answer to 3 decimal places.
A researcher wanted to know which local brewery had the best IPA. Each participant tried a sample from all three different breweries (Ore Dock, Black Rocks, and Barrel + Beam) and was asked to rate each one on a scale of 0-100. Use the six steps of hypothesis testing to determine if there was a significant effect of brewery on IPA popularity ratings. Participants ore dock blackrocks barrel + beam 1 40 30 53 2 42 45 65 3 30 38 64 4 37 32 43 5 23 28 38 What is the SS within?
A university has decided to introduce the use of plus and minus grading as long as there is evidence that 60% of the faculty is in support of this change. Write an appropriate null hypothesis and alternate hypothesis to test if the proportion is greater than 60%.
A survey of 200 people was taken to determine whether distance from voting center was related to the likelihood of voting. Based on these results, does it appear that these two variables are related at the 10% level of significance?
Use the two-proportions z-test to perform the required hypothesis test. Assume that independent simple random samples have been selected from the two populations. A marketing survey involves product recognition in New York and California. Of 558 New Yorkers surveyed, 193 recognized the product while 196 out of 614 Californians recognized the product. At the 5% significance level, do the data provide sufficient evidence to conclude that the recognition rate in New York differs from the recognition rate in California?
Country clerk in Essex County New Jersey selected candidates for positions on election ballot. Democrats were selected first in 40 of 41 ballots. Because he was supposed to use a method of random selection Republicans claimed that instead of using randomness he used a method that favor Democrats use a 0.01 significance level to test the claim that the ballot selection method favors Democrats.

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