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OpenStudy (anonymous):
Help please from smart people. Assume the data has a normal distribution. Also assume that the standard deviation of the population, sigma, is known,. Find the critical value(s) used to test a null hypothesis: level of significance a=0.07; H1 is u >62.4 a) 1.48 b) +1.81 c)1.81 d)-1.48
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