We have provided a sample mean, sample size, and population standard deviation. In each case, use the
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We have provided a sample mean, sample size, and population standard deviation. In each case, use the one-mean z-test to perform the required hypothesis test at the 5% significance level.
x̄ = 21, n = 32, σ = 4, H0 : μ = 22, Ha: μ < 22
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