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A random sample of 63 produced the summary statistics x=0.387 and s2=0.033. a. Test the null hypothesis that μ=0.42 against the alternative hypothesis that μ<0.42, using α=0.10. What is the value of the test statistic? z=enter your response here (Round to two decimal places as needed.)

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Answered by farmaanul on coursehero.com

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