Assume that a sample of 11 observations is drawn from a normally distributed population. The sample mean is 20 and the sample standard deviation is 5. If we test the hypothesis that the population mean is greater than 18 at α=5% significant level, we find that
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Step 1
Step 1: State the null and alternative hypotheses: - Null hypothesis (H0): μ = 18 - Alternative hypothesis (H1): μ > 18 Show more…
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