A simulation generates 10,000 sample means with size n = 25 from a population. The histogram has center near 50 and SD near 2.
Which is the most plausible inference about the population?
- A
μ ≈ 50 and σ ≈ 2.
- B
μ ≈ 25 and σ ≈ 50.
- C
μ ≈ 2 and σ ≈ 50.
- Dcheck_circle
μ ≈ 50 and σ ≈ 10.
Explanation
Center of x̄ distribution ≈ μ = 50; SD ≈ σ/√n → 2 ≈ σ/√25 → σ ≈ 10.