r:t-test
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| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| r:t-test [2023/10/13 04:38] – [One sample t-test against population parameter mu and sigma] hkimscil | r:t-test [2024/04/14 23:52] (current) – [One sample t-test against population parameter mu and sigma] hkimscil | ||
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| Line 30: | Line 30: | ||
| > potato_sample_large <- rnorm2(2500, | > potato_sample_large <- rnorm2(2500, | ||
| > mean(potato_sample_large) | > mean(potato_sample_large) | ||
| - | [1] 191 | + | [1] 194 |
| > sqrt(var(potato_sample_large)) | > sqrt(var(potato_sample_large)) | ||
| [1] 20 | [1] 20 | ||
| Line 82: | Line 82: | ||
| t <- (sample_mean - pop_mean) / (sample_sd/ | t <- (sample_mean - pop_mean) / (sample_sd/ | ||
| - | 2*(abs(qt(0.05/ | + | abs(qt(0.05/ |
| # or | # or | ||
| - | 1-pt(t,n-1) | + | 2*(1-pt(t,n-1)) |
| # n = 50 이었음 | # n = 50 이었음 | ||
| # t = 계산된 값 | # t = 계산된 값 | ||
| + | </ | ||
| + | |||
| + | < | ||
| + | tout <- t.test(height_sample_biased, | ||
| + | tout | ||
| </ | </ | ||
| ====== One sample t-test population sigma unknown ====== | ====== One sample t-test population sigma unknown ====== | ||
r/t-test.1697171910.txt.gz · Last modified: by hkimscil