Question: Confidence level is 98% n= 22 o= unknown The population is normally distributed (a) Find the critical value z /2 (b) Find the critical value

Confidence level is 98%

n= 22

o= unknown

The population is normally distributed

(a) Find the critical value z /2

(b) Find the critical value t /2

(c) State that neither the normal nor the t distribution applies.

Question: Find the critical value

I get tx/2= 2.189. I'm not sure if this is right

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