Do one of the following,as appropriate. (e) Find the criticalvalue zu/2. tb) fin

Question

Do one of the following,as appropriate. (e) Find the criticalvalue zu/2. tb) find the critical value (u/2.(e) state that neither the normal nor the t distibution apples. Confidence level 98%; n= 28; ? is known; population appears to be very skewed Cick here to view a table of crtical t-values Click here to view page 1 of the standard normaltable Click here to view page 2 of the standard normal table Find the critical value. OA, tu/ 2.2.473 ? B. W2.2, 158 OC. 20/2 2.055 O E. Neither normal nor t distribution applies.

Explanation / Answer

Here population sd is know we use z distribution

So we have to find z critical value at Alfa = 0.02

Z = 2.33

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