# Chi-Square Statistic Assignment | Professional Writing Services

Calculate the chi square statistic.

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χ2 =

1. Why does the tobt change when we use dependent v. independent samples t-tests?

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1. Why does the tcrit change when we use dependent v. independent samples t-tests?

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1. How can we figure out how many people we have in a sample, given a specific degrees of freedom? Answer for both independent and dependent samples tests.

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1. Which is preferable, a dependent samples test or an independent samples? Give two reasons why.

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1. Explain pooled variance.

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1. Given the choice, we won’t use the chi-square test. What’s so wrong with it? What are the assumptions associated with the chi-square?

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Extra credit.

Why do we care about homogeneity of variance?

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