Question: 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

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 10% significance level. x=42, n=20, 5, Ho: H=40, Ha: H>40 The test statistic is z= (Round to two decimal places as needed.)

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