ci_t | R Documentation |
Calculates the confidence interval for the mean with unknown standard deviation, using the t-statistic (t distribution).
ci_t(x, s, n, conf.level = 0.95, digits = 2)
x |
Sample mean |
s |
Sample standard deviation |
n |
Sample size |
conf.level |
Confidence level to use for the confidence interval (Default is 0.95) |
digits |
Number of digits to round to (Default is 2) |
It can work for dependent (paired) samples using the mean and standard deviation of differences
A tibble with the mean, degrees of freedom, and lower and upper ends of the confidence interval
x <- 80 s <- 15 n <- 20 ci_t(x, s, n)
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