A sample​ mean, sample​ size, and population standard deviation are given. Use the​ one-mean z-test to perform the required hypothesis test at the given significance level. Use the​ critical-value...


A sample​ mean, sample​ size, and population standard deviation are given. Use the​ one-mean z-test to perform the required hypothesis test at the given significance level. Use the​ critical-value approach.



x=21.4​,

n=11​,

σ=7.4​,

H0: μ=18.7​;

Ha: μ≠18.7​,

alpha= 0.01



Jun 07, 2022
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