You wish to test the claim that ? < 21 at a level of significance of ? = 0.01 and are given sample statistics n = 40, x? = 21.8. Assume the population standard deviation is 4.3. Compute the value of the test statistic. Round your answer to three decimal places. -1.177
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The null hypothesis (H0) is that the population mean is equal to 2.8, while the alternative hypothesis (Ha) is that the population mean is not equal to 2.8. H0: μ = 2.8 Ha: μ ≠ 2.8 Show more…
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