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Given the following hypotheses: H0: μ ≥ 20 H1: μ > 10 A random sample of...

Given the following hypotheses:

H0: μ ≥ 20

H1: μ > 10

A random sample of five resulted in the following values: 18, 15, 12, 19, and 21. Assume a normal population. Using the 0.01 significance level, can we conclude the population mean is less than 20?

a). Compute the value of the test statistic. (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.)

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