Answer: Hi Your question lacks some information but i will give you a general solution with similar data found online
answer
a) 15.15%
b) The effect on The probability of smoking is that the p( smoking ) will reduce from 15.15% to 11.70%
Step-by-step explanation:
Using The probit regression
from the attached question ;
for smoking
1 = smokes , 0 = do not smoke
For Independent variable
1 = ban at workplace , 0 = not ban at workplace.
sex : male = 0 , female = 1
a) Assuming Mr. A is not subject to a workplace smoking ban
P ( Mr. A smokes ) = 15.15%
b) Assuming Mr. A is subject to a workplace smoking ban
determine effect on P ( Mr. A smokes )
The effect on The probability of smoking is that the p( smoking ) will reduce from 15.15% to 11.70%