From 762fc0acc9b88802c0d3f7508f6226411b967a72 Mon Sep 17 00:00:00 2001 From: zleyyij Date: Tue, 13 Feb 2024 14:40:55 -0700 Subject: [PATCH] vault backup: 2024-02-13 14:40:55 --- education/statistics/Hypothesis Tests.md | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/education/statistics/Hypothesis Tests.md b/education/statistics/Hypothesis Tests.md index 675ca31..ac6995b 100644 --- a/education/statistics/Hypothesis Tests.md +++ b/education/statistics/Hypothesis Tests.md @@ -74,6 +74,10 @@ The $\chi^2$ curve does not follow the normal curve. It has a long right hand ta $$ df = num_{terms} - 1 $$ -There will never be a $\chi^2$ statistic. +%% There will never be a $\chi^2$ statistic. (i don't know what this means but it was in my notes) %% -Ch ($\chi$), i is pronounced khai \ No newline at end of file +Ch ($\chi$), i is pronounced khai + +Difference between $\chi ^2$ and z-test + - The $\chi ^2$-test says whether the data are like the result of drawing at random from a box whose *contents* are given. +- The z-test says whether the data are like the result of drawing at random from a box whose *average* is given.