(16)
(Choose 1 answer)
(See picture)
A. Yes, pooled proportion = 0.623 and Z_stat= -0.0418
B. No, pooled proportion = 0.623 and Z_stat=-4.172
C. None of the others
D. No, pooled proportion = 0.459 and Z_stat=-4.172
E. Yes, pooled proportion = 0.459 and Z_stat=-0.0418
Assume that n₁ = 120; x₁ = 55; n₂ = 65; x2 = 30
At the 0.05 level of significance, is there sufficient evidence of a significant difference between the two population proportions in group 1 and group 2?
Given that Z0.025 1.96; Z0.05 = 1.645; 20.0052.575
