Chi Square Graphpad Verified Online

Prism will open a parameters window.

[ X^2 = \sum \frac(O - E)^2E ]

Enter your numbers exactly as they appear in your contingency table. chi square graphpad verified

A Chi-square test of independence was performed to examine the relationship between treatment type (drug vs. placebo) and clinical improvement (improved vs. not improved). The relationship was statistically significant, χ²(1, N = 120) = 8.57, p = 0.003. Patients receiving the drug were more likely to show improvement (75%) compared to those receiving placebo (50%). The odds ratio was 3.0 (95% CI: 1.42–6.34). Prism will open a parameters window

You can find more detailed walkthroughs and troubleshooting on the GraphPad Statistics Guide test versus a Test of Independence N = 120) = 8.57