Chi-squared Test

Mr. Andersen introduces the chi-squared test, a statistical method used to determine if observed data deviates significantly from expected data due to chance or a variable being tested. He explains key concepts such as observed and expected values, null hypothesis, degrees of freedom, and critical values. Through examples involving coin flipping and dice rolling, he demonstrates how to calculate chi-squared values and interpret results. The video concludes with a challenge to apply the chi-squared test to pill bugs data.

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