MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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How's it going?: The American National Election Studies (ANES) collects data on voter attitudes and intentions as well as demographic information. In this question we will focus on two variables from the ANES dataset (ANES, 2012). region (levels: Northeast, North Central, South, and West) whether the respondent feels things in this country are generally going in the right direction or things have pretty seriously gotten off on the wrong track To keep calculations simple we will work with a random sample of 500 respondents from the ANES dataset. The distribution of responses are as folows: Right Direction Wrong Track Northeast North Central South West Total 29 44 62 36 171 54 77 131 67 329 Total 83 121 193 103 500 This could be a Chi-Squared GOF OR Chi-Squared Test for Independence. Think about the differences between the two tests to determine which one to use on this version of the question. Region: According to the 2010 Census, 18% of US residents live in the Northeast, 22% live in the North Central region, 37% live in the South, and 23% live in the West. Is this sample representative of the population distribution of US residents? Use a 0.05 significance level.
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Transcribed Image Text:How's it going?: The American National Election Studies (ANES) collects data on voter attitudes and intentions as well as demographic information. In this question we will focus on two variables from the ANES dataset (ANES, 2012). region (levels: Northeast, North Central, South, and West) whether the respondent feels things in this country are generally going in the right direction or things have pretty seriously gotten off on the wrong track To keep calculations simple we will work with a random sample of 500 respondents from the ANES dataset. The distribution of responses are as folows: Right Direction Wrong Track Northeast North Central South West Total 29 44 62 36 171 54 77 131 67 329 Total 83 121 193 103 500 This could be a Chi-Squared GOF OR Chi-Squared Test for Independence. Think about the differences between the two tests to determine which one to use on this version of the question. Region: According to the 2010 Census, 18% of US residents live in the Northeast, 22% live in the North Central region, 37% live in the South, and 23% live in the West. Is this sample representative of the population distribution of US residents? Use a 0.05 significance level.
3. The expected values for each region are: Northeast: X North Central: South: X X West: 4. The test statistic for this hypothesis test is X²= 5. The number of degrees of freedom associated with this test is: 6. The p-value associated with this hypothesis test is: x X X X
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Transcribed Image Text:3. The expected values for each region are: Northeast: X North Central: South: X X West: 4. The test statistic for this hypothesis test is X²= 5. The number of degrees of freedom associated with this test is: 6. The p-value associated with this hypothesis test is: x X X X
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Step 1: Mention the given data
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Step 2: Compute the expected values
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Step 3: Compute the test statistic
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Step 4: Compute the degrees of freedom
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Step 5: Compute the p-value
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