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Results tagged with hypothesis-testing
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user 239357
Hypothesis testing assesses whether data are inconsistent with a given hypothesis (usually a null hypothesis of no effect).
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How do I do an AB test with a binary response variable?
I ran an AB test. I'd like to see if the conversion rate is significantly different between groups.
I know in an independent two-sample t-test, there are two vectors of numeric values (like height pe …
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1
answer
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Is the t-interval and student's t-distribution the same?
I'm taking this course on statistical inference through datacamp.
The instructor went over the idea of a confidence interval. The instructor said that we take a large number of bootstrapped samples f …
- 347
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What's the right way to make a null distribution?
I want to run an a/b test. I'd like to check if my results in the experimental variant are extreme, under the null hypothesis. I haven't created my sample, yet, and I'd like to do a power analysis to …
- 347
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523
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What's the right test of significance for a categorical independent variable and categorical...
I have data that looks like this. It goes on for about 10,000 rows. Goal is always TRUE/FALSE and category has five options.
category goal
1 TWO LEGS FALSE
2 TWO LEGS TRUE
3 FOUR LEG …
- 347
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Is there a quick way to check the significance for each category of a predictor?
I ran a chi-square test of independence on this data set.
# A tibble: 5 x 3
category true false
<dbl> <int> <int>
1 1 101 633
2 2 1241 4122
3 3 1211 3642
…
- 347
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answer
113
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What's the right t-test for comparing the distribution of a response variable across two cat...
I have data where every record has an ID, a numeric value (that represents the number of times each ID took a particular action) and a binary state that represents whether they achieved a goal.
id …
- 347
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How do I know whether my sample is fair?
I have a time series dataset with 500 million rows, twenty-six columns and 400 thousand unique actors.
It's too much data for me to process all at once, so I want to take a fair sample of my data.
I'l …
- 347