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Question 15 0.5 pts Use the following information for the next few questions: Ho: mul = mu2 H1: mu1=\\=mu2 n1-12 and n2-11 alpha - 0.05 The critical value limits of Welch's t-test are ) and (upper) based on the textbook recommended simple way of determining the degrees of freedom. Record only the lower limit to three decimal places (example, 0.123)