Kizspy | Question: 45
(Choose 1 answer)
(See picture)
Α. -1.96; 1.96
Β. -1.69; 1.69
C. -2.03; 2.03
D.-1.64; 1.64
Assuming that the weights (kg) of two groups of children with non-smoking and smoking mothers both follow normal distributions with standard deviations of 0.576 and 0.776,respectively. Testing on the corresponding samples gives us the following results:
n₁ = 20,X1 = 3.4;n2 = 17,X2 = 3.2.
With a = 0.05, what are the critical values of testing the hypothesis that both groups have the same average weight?
Let Z0.025 1.96 Z0.05 1.64 to.025.35 2.03 t0.05.35 = 1.69
FUOVERFLOW
