r:t-test
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r:t-test [2023/10/13 13:38] – [One sample t-test against population parameter mu and sigma] hkimscil | r:t-test [2024/04/15 08:52] (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: 2023/10/13 13:38 by hkimscil