ci_z2 | R Documentation |
Calculates the confidence interval for the difference of the mean between 2 samples (Z distribution).
ci_z2(x1, sig1, n1, x2, sig2, n2, conf.level = 0.95, digits = 2)
x1 |
Sample's 1 mean |
sig1 |
Population's 1 standard deviation |
n1 |
Sample size of sample 1 |
x2 |
Sample's 2 mean |
sig2 |
Population's 2 standard deviation |
n2 |
Sample size of sample 2 |
conf.level |
Confidence level to use for the confidence interval (Default is 0.95) |
digits |
Number of digits to round to (Default is 2) |
A tibble with the difference of means, and lower and upper ends of the confidence interval
x1 <- 42 sig1 <- 8 n1 <- 75 x2 <- 36 sig2 <- 6 n2 <- 50 ci_z2(x1, sig1, n1, x2, sig2, n2)
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