All Questions
6 questions
0
votes
0
answers
25
views
What is the meaning of confidence intervals when NOT using sample data and instead have data on the whole population? [duplicate]
I'm trying to understand why you would need confidence intervals or compute statistical tests (for comparing proportions) when your data is NOT from a sample and you have data on the whole population.
...
- 77
2
votes
1
answer
102
views
What's population, what's sample, in a website conversion hypothesis test?
Context
I am a marketer; and I run marketing campaigns and website design tests a lot.
There are many tools - such as online A/B testing calculators - out there to help me test the statistical ...
- 119
0
votes
1
answer
40
views
Sub-population analysis
I'm facing a statistical issue.
I'm analysing a medical dataset, in which I have a full population. I know if they have a certain disease or not.
Let's say I have 100 000 people on this, 20% having ...
- 176
4
votes
0
answers
96
views
Statistical Test for Evolution of a Population Proportion?
The problem I am faced with is as follows - there is some population proportion $p$ of people with a certain characteristic that is evolving over time. We take new samples every day (without ...
0
votes
1
answer
341
views
Hypothesis testing on two proportions in two finite populations
I have data collected over two years where:
Year 1 = 34 successes in the representative sample of 49 taken from the finite population of 122, and
Year 2 = 45 successes in the representative sample of ...
4
votes
1
answer
1k
views
Comparing a distribution of percentages
I have two populations that I would like to compare, each of which contains N samples. Each sample itself contains many events that can be categorized into 20 different, mutually exclusive, categories....
- 41