one.sample.z {asbio} | R Documentation |
Provides a one-sample hypothesis test. The test assumes that the underlying population is normal and furthermore that σ is known.
one.sample.z(data = NULL, null.mu, xbar = NULL, sigma, n = NULL, test = c("two.sided", "lower.tail", "upper.tail"))
data |
A vector of quantitative data. Not required if xbar and n are supplied by the user. |
null.mu |
The expectation for the null distribution. |
xbar |
Sample mean. Not required if is.null(data)==FALSE |
sigma |
The null distribution variance |
n |
The sample size. Not required if is.null(data)==FALSE |
test |
Type of test. One of three must be specified "two.sided", "lower.tail" , or "upper.tail" |
The function can use either raw data is.null(data)==FALSE
or summarized data if is.null(data)==TRUE
. With the later xbar
and n
must be specified by the user.
Returns a p-value.
Ken Aho
one.sample.z(null.mu=131,xbar=126,sigma=12,n=85,test="two.sided")