Which of the following scenarios would it be appropriate to use a normal approximation for the sampling distribution of the sample proportion?
1) A researcher wishes to find the probability that more than 60
2) A researcher wishes to find the probability that less than 5
3) A grad student at NC state wants to know how likely it is that a group of students would be made up of more than 27
4) A full-time student at Fayetteville State University wants to know how likely it is that a group of students would be made up of less than 70