## Question 188:

1## Answer:

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For Chi-square analysis, the sample sizes do not need to be equal. If your sample size is small, it will affect the computation. If you need help with the computations of a Chi-Square. I've attached an example of a Chi-Square test of Independence with unequal sample sizes in excel so you can see the computations.In general, the formula is

Sum of (O-E)^{2}

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E

- O means the observed frequencies
- E means the expected frequencies