Tagged Questions
4
votes
1answer
35 views
chi-squared test for non-iid binomial data
Simple case: Suppose we have $N$ observations of $X_i$ that we believe are theoretically iid binomial random variable $\text{Binomial}(k, p)$. Well, one way we could test to see if this is true is ...
3
votes
1answer
130 views
Does there exist some sample size threshold for choosing between the chi-squared test and the exact binomial test?
I'd like to use the exact binomial test to analyze some data,
but the exact binomial test takes too much computation and is unnecessary when the sample size is larger because it can be approximated ...
4
votes
1answer
136 views
Testing whether there is a difference between two groups who were asked the same set of questions
I asked two groups of individuals (80 males and 10 females) fill out a questionnaire asking them their attitude towards a series of political variables. Every individual had to answered a set of 16 ...
2
votes
1answer
763 views
Binomial random variables versus chi-square for A/B testing?
I've been reading on how to calculate confidence levels from A/B tests, as I'm running some ads on Facebook and want to better understand the results. The clearest explanations I've found seem to ...
0
votes
0answers
129 views
ANOVA for binomially-distributed data
Is ANOVA valid for binomial data?
I have 7 binomial groups and I want to test whether the distributions of all of the groups are equal or whether the distribution of the first group is significantly ...
6
votes
3answers
667 views
NaN p-value when using R's goodfit on binomial data
I am attempting to test the goodness of fit for a vector of count data to a binomial. To do so I am using the goodfit() function in the ...
6
votes
2answers
869 views
Why does the McNemar's test use chi-square and not the normal distribution?
I just noticed how the non exact McNemar's test uses the chi square asymptotic distribution. But since the exact test (for the two case table) relies on the binomial distribution, how come it is not ...
