A sample survey interviews an SRS of 267 students. Suppose that 70% of all college women have been on a diet w?

a sample survey interviews an SRS of 267 students. Suppose that 70% of all college women have been on a diet w/in the last 12 months. Use a normal approximation to find the probability that 75% or more of the women in the sample have been on a diet.|||use the Pearson's chi square test