A random sample of n = 60 households is taken; the true proportion that own a pet is p = 0.55.
Is Large Counts satisfied?
- Acheck_circle
Yes, because np = 33 and n(1-p) = 27, both ≥ 10.
- B
Yes, because n > 30.
- C
No, because p > 0.5.
- D
No, because n < 100.
Explanation
np = 33 ≥ 10 and n(1−p) = 27 ≥ 10, so Large Counts is satisfied.