Students conducted a survey and found out that 36% of their peers on campus had tattoos, but only 4% of their peers were smokers.
1. If 100 students were surveyed, can these students use the Normal approximation to study the proportion of students in the population who are smokers?
2. If 200 students were surveyed, can these students use the Normal approximation to study the proportion of students in the population who have tattoos?
3. If 200 students were surveyed, can these students use the Normal approximation to study the proportion of students in the population who are smokers?
a. Yes, because both np and n(1 – p) is less than 10
b. No, because either np or n(1 – p) is less than 10
c. No, because either np or n(1 – p) is greater than 10
d. Yes, because both np and n(1 – p) is greater than 10