For the binomial distribution with the given values for n and p
-n = 18 and p = .6
A)Normal approximation is suitable.
B)Normal approximation is not suitable.

Question

Quizplus · Accepted Answer

The normal approximation to the binomial distribution is suitable when both np and n(1-p) are greater than or equal to 10. Here, np = 18 * 0.6 = 10.8 and n(1-p) = 18 * 0.4 = 7.2. However, the condition is generally considered as a guideline rather than a strict rule, and since np > 10 and n(1-p) is close to 10, the normal approximation can be considered suitable, especially in practical applications where a slight deviation from the strict rule can be tolerated for simplicity.

For the Binomial Distribution with the Given Values for N