Question 14 (4 points) What is the critical t-value for a two-tailed test when a =...

Question

Question

math Statistics-And-Probability

Answer 1

Answer #1

Solution:

d.f. = 18

$\alpha$ = 0.02

$\alpha$ /2 = 0.02/2 = 0.01

For two tailed test , critical value is

$\pm t_{\alpha/2,df}=\pm t_{0.01,18}= 2.552$

Answer: 2.552

Answer 2

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