Use the​ t-distribution table to find the critical​ value(s) for the indicated alternative​ hypotheses, level of significance alphaα​, and sample sizes n1 and n2. Assume that the samples are​ independent, normal, and random. Answer parts​ (a) and​ (b).   Upper H Subscript aHa​: μ1≠μ2​, α=0.20 n1=10 n2=2   ​(a) Find the critical​ value(s) assuming that the population variances are equal= ​(Type an integer or decimal rounded to three decimal places as needed. Use a comma to separate answers as​ needed.)   (b) Find the critical​ value(s) assuming that the population variances are not equal= ​(Type an integer or decimal rounded to three decimal places as needed. Use a comma to separate answers as​ needed.)

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