A sample mean, sample size, and population standard deviation are provided below. Use the one-mean z-test
to perform the required hypothesis test at the 5% significance level.
ar{x} =30,n=25,sigma =7,H_(0):mu =32,H_(a):mu !=32
The test statistic is z=-1.43.
(Round to two decimal places as needed.)
The P-value is 0.153 .
(Round to three decimal places as needed.)
the null hypothesis. The data
ᄀ.
sufficient evidence to conclude that the mean is
A sample mean, sample size, and population standard deviation are provided below. Use the one-mean z-test to perform the reguired hypothesis test at the 5% significance level
x=30,n=25,=7,Ho:=32,Ha:#32
The test statistic is z =- 1.43 (Round to two decimal places as needed.)
The P-value is 0.153
(Round to three decimal places as needed.
the null hypothesis. The data
sufficient evidence to conclude that the mean is