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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Question
race RDG
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Name Description Position SEX SEX 1 Value Label 1 MALE FEMALE RACE * No label * 2 Value Label 1 HISPANIC ASIAN 3 BLACK 4 WHITE
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Transcribed Image Text:Name Description Position SEX SEX 1 Value Label 1 MALE FEMALE RACE * No label * 2 Value Label 1 HISPANIC ASIAN 3 BLACK 4 WHITE
A researcher is interested in investigating the effects of Race on Reading scores. (a) Test the null hypothesis that Race has no effect on Reading Scores (i.e., all of the race groups have the same average reading score) in the population. Report the test-statistic, df, and p-value, and state the conclusions from this test. (b) Report the sample means and variances of the reading scores for each of the race groups. Specify which of these sample values would be compared to evaluate the homogeneity of variance assumption, which is required for the test in part (a). Please note that you are not asked to evaluate the assumption, just report which values (descriptive statistics) it would be comparing.
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Transcribed Image Text:A researcher is interested in investigating the effects of Race on Reading scores. (a) Test the null hypothesis that Race has no effect on Reading Scores (i.e., all of the race groups have the same average reading score) in the population. Report the test-statistic, df, and p-value, and state the conclusions from this test. (b) Report the sample means and variances of the reading scores for each of the race groups. Specify which of these sample values would be compared to evaluate the homogeneity of variance assumption, which is required for the test in part (a). Please note that you are not asked to evaluate the assumption, just report which values (descriptive statistics) it would be comparing.
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