hypotheses, level of Use the t-distribution table to find the critical value(s)

Question

hypotheses, level of Use the t-distribution table to find the critical value(s) for the indicated alternative significance ?, and sample sizes n1 and n2. Assume that the samples are independent, normal, and random. Answer parts (a) and (b) (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.)

Explanation / Answer

a)
df = n1 + n2 -2 = 13+11 - 2 = 22
Critical value = 2.074

b)

df = n1 - 1 = 11 - 1 = 10
Critical value = 2.228

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