Two simulated sampling distributions of x̄ are overlaid on the same axes.
Two sampling distributions of x̄ have the same mean μ but different SDs. Which has a smaller σ?
- A
Cannot tell.
- Bcheck_circle
The taller, narrower one (larger n).
- C
Both have the same SD.
- D
The wider one (smaller n).
Explanation
A narrower sampling distribution corresponds to a smaller σ_x̄ = σ/√n, which occurs with larger n.