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Q&A HubTag: #sample ×
1 year ago
Why do we use n-1 for samples instead of ...
1 year ago
This is a curious question. I know that we want our sample to be both random and representative.   ...
Can a sample be random but not representative? Or can a sample be representative but not random. ...
1 year ago
Hello, team!   So if our sample size is greater than 30, we use z-test? or t-test?   ...