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معليش اختي في سؤال
In comparing two population means, what is the critical value for a one-tailed hypothesis test, using a 5% level of significance level, with both sample sizes equal to 13? The standard deviations for the samples are 5 and 7. Assume equal population standard deviations.
A. 2.064
B. 1.711
C. 2.074
D. 1.717