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2 votes
1 answer
3k views

How to compare if two multinomial distributions are significantly different

We can use T test to check if two proportions are significantly different. Similarly is there a way to test if two multinomial distributions or "2 samples with more than 2 unique values" are ...
5 votes
1 answer
653 views

Chi square test

I am reading about chi-square test but came across Chi square test of independence, Chi square test for goodness of fit and Chi square test of variance. I am confused and unable to find out what is ...
2 votes
0 answers
30 views

Which statistical test for two group proportions over two time periods? 100% sampling, capped membership. Independent groups over time

I'm comparing the number of male and female hires at a city in the 1980's to the number of male and female hires in the 1990's. I'm looking for whether the percentage of females increased ...
0 votes
1 answer
75 views

Measuring statistical significance for NYC restaurant inspection grades

I recently had a timed interview question on the following data set: https://data.cityofnewyork.us/Health/DOHMH-New-York_City-Restaurant-Inspection-Results/xx67-kt59/about The question was: is there a ...
5 votes
2 answers
11k views

How to determine whether a variable is significant using Pr (>Chi) and Df?

I wonder how can I determine whether a variable is significant using Pr (>Chi) and Df? Take following ANOVA table as an example, I know variable type is significant,...
5 votes
2 answers
13k views

Test if differences between frequencies is significant

I have the following frequency table: ...