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2. In testing the hypothesis Ho #- 75 vs. H. # 7, the following information is known: n = 25, x = 50, and J = 6. What is the test statistic equal to? 3. A random sample of n = 49 observations from a quantitative population produced a mean x = 2.5 and a standard deviation s = 0.3. Suppose your research objective is to show that the population mean " exceeds 2.4. Find the standard error of the mean