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Suppose that a random sample of 62 observations is drawn from normally distributed population with the standard deviation of 4.952. The sample mean is

Suppose that a random sample of 62 observations is drawn from normally distributed population with the standard deviation of 4.952. The sample mean is calculated as 121.111. H : A = 120.5 against H> 120.5 is wanted to test at 5% significance level. What is the critical value (approximately)? A. -1.645 B. 1.96 C. -1.96 D. 1.645

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