Question

Suppose 32 pregnant women are sampled who smoke an average of 21 cigarettes per day with a variance of 100.00.

a) What is the probability that the pregnant women will smoke an average of 20 cigarettes or more?
probability =  

b) What is the probability that the pregnant women will smoke an average of 23 cigarettes or less?
probability =  

c) What is the probability that the pregnant women will smoke an average of 19 to 24 cigarettes?
probability =  

d) What is the probability that the pregnant women will smoke an average of 23 to 27 cigarettes?
probability =  

Answer 1

Using Central Limit theorem, we know,

a)

b)

c)

d)