Question

Find the critical t-value corresponding to a sample size of 29 and a confidence level of 90%.

Answer 1

sample size (n) = 29

df = (n-1) = (29-1) = 28

confidence level (c) = 90% = 0.90

level of significance () = (1-c) = (1-0.90) = 0.10

t critical value for 90% confidence level , both tailed test be:-

***as here, nothing is mentioned i am providing the t critical value for one tailed test also.

t critical value for 90% confidence level , one tailed test be:-

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