Cumberland University Null Hypothesis Chi Square & Inferential Statistics HW

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Mathematics

Cumberland University

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Use the chi square method to test the psychologist’s hypothesis.

    • Which test are you using?
    • What are your H0 (null hypothesis) and Ha (alternative hypothesis)?
    • Calculate your statistic?
    • What decision does this inform you to make and why? (You may use the critical value in the chart or the calculated p-value, but you must indicate what you are doing.)
    • Write a one to two sentence conclusion.

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734 Quiz 1 1. A social psychologist hypothesized that a factor in juvenile delinquency was the presence or absence of a strong father-figure in the home. He examined the folders of 100 inmates in the federal reformatory and found that only 50 of these young men grew up with a strong father-figure in the home. He also examined the records of 100 randomly selected male college students and found that 70 of them had strong father-figures in their boyhood homes. Use the chi square method to test the psychologist’s hypothesis. a. Which test are you using? b. What are your H0 (null hypothesis) and Ha (alternative hypothesis)? c. Calculate your statistic? d. What decision does this inform you to make and why? (You may use the critical value in the chart or the calculated p-value, but you must indicate what you are doing.) e. Write a one to two sentence conclusion.
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