# Tagged Questions

0answers
95 views

### Simple $\chi^2$ test question

I have the following question which seems extremely easy, but the way the data are set up is causing me some uncertainty: I plan to solve this problem through finding the maximum likelihood ...
1answer
43 views

### Mixed-effect for Dichotomy/binomial variables?

For normal-distributed interval/ratio data, we can apply linear mixed effect model for analysing longitudinal data, where each subject is measured multiple times. How about dichotomy (binomial) data? ...
2answers
102 views

### Coin toss experiments: When to use binomial, $\chi^2$ and Fisher's exact test?

Let us say we have 2 independent trials with two different coins. In sample A, coin 1 is tossed 20 times and we record 6 heads and 14 tails. In sample B, coin 2 is flipped 30 times and we record ...
1answer
62 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 ...
1answer
160 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 ...
1answer
156 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 ...
1answer
1k 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 ...
0answers
141 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 ...
3answers
949 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 ...
2answers
1k 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 ...