Kizspy | Question: 61
(Choose 1 answer)
(See picture)
Α. (-0.547,0.977)
Β. (0.247,0.947)
C. (-0.247,0.647)
D. (1.247,1.987)
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. Data for two random samples from these two groups are as follows:n₁ = 20,x₁ = 3.4;n2 = 17,X2 = 3.2.Calculate a 95% confidence interval on the difference in population means (μ₁ – μ₂).Let 20.05 1.65; 20.025 1.96.
