A researcher wants to construct a one-sample z-interval for a proportion.
For the Large Counts condition with n=50 and p̂=0.10, is the condition satisfied?
- A
No: n is less than 100.
- B
Yes: n exceeds 30.
- Ccheck_circle
No: np̂ = 5, less than 10.
- D
Yes: both np̂ and n(1−p̂) exceed 10.
Explanation
np̂ = 50·0.10 = 5 < 10. Large Counts condition fails.