Testing: Ho: μ > 44.7 H:μ < 44.7 Your sample consists of 38 values, with a sample mean of 44.2. Suppose the population standard deviation is known to be 1.23. a) Calculate the value of the test statistic, rounded to 2 decimal places. 2 = b) At a = 0.08, the rejection region is Oz -1.75 or z > 1.75 Oz < -1.41 Oz> 1.41 Oz > 1.75 Oz < -1.75 Oz -1.41 or z > 1.41 c) The decision is to O Reject the null hypothesis Accept the alternative hypotheis O Fail to reject the null hypothesis O Accept the null hypothesis d) Suppose you mistakenly rejected the null hypothesis in this problem, what type of error is that? O Type I O Type II

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