(Chi square)
Assignment
1. What use of the χ2statistic is used in this lesson?
= To evaluate two variables for independence
2. How is an expected value calculated, in the context of this lesson?
= The expected value is calculated by multiplying the column total by the row total and dividing
the product by n, the number of samples.
3. How are degrees of freedom calculated in a chi-square test of independence?
= df = (# of rows –1)(# of columns –1)
4.What type of table is commonly used to organize information for a chi-square
