The Chi-Square statistic
Here is a link to the section from Hyperstats on the Chi-square statistic. Section 1 is about how the chi-square test can do a one proportion z-test.
- This Georgetown Univ. link has a more complete tutorial for the chi-square test, and includes a on-line calculator to compute the chi-square statistic.
- Chi-square section quiz from the Yates-Moore-Starnes book