With Ha : μ ≠ 83.1 you obtain a test statistic of z = 2.33 Find...

Question

Question

With H_a : μ ≠ 83.1
you obtain a test statistic of z = 2.33
Find the p-value accurate to 3 decimal places.

Answer 1

Answer #1

solution

two tail test

Test statistic = z=2.33

P(z >2.33 ) = 1 - P(z <2.33 ) = 1-0.9901=0.0099 z table

P-value = 2*0.0099=0.0198

p value =0.020 rounded

Answer 2

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