# Explain the main assumption of chi-square tests

Discuss the main assumption for using a chi-square test. Find a research article that uses chi-square and explain why it was the right test and how the assumption plays into it.

response is 290 words plus a peer-reviewed article that used chi-square tests to support their work (attached).

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#### Solution Preview

The main assumption for chi-square is that the participants can only be in one "cell" -- that is called the test of independence. Chi-square checks to see if the proportion of participants in the sample matches a hypothesized or previously known proportion or if the proportion among outcomes is due to chance.

For example, let's say you think that woman are more likely to want a color Nook rather than a black and white one and men will prefer ...

#### Solution Summary

The solution is 290 words in everyday language suitable for a novice. There is a hypothetical example and then a discussion of an actual article showing how this works.