A market research firm conducts telephone surveys with a 39% historical response rate. How do I solve for this?

{Exercise 7.51 (Algorithmicjl A market research firm conducts telephone surveys with a 39% historical response rate. a. What is the probability that in a new sample of 400 telephone numbers, at least 145 individuals will cooperate and respond to the questions? In other words, what is the probability that the sample proportion will be at least 145/400 = 0.3625? Calculate the standard error to 4 decimals. :1 0 Calculate the probability to 4 decimals, showing your steps along the way. Pg}; 0)=P(22 0): 0 b. If a follow-up study was completed a year later with only 64 telephone numbers, what is the probability that the response rate was between 36% and 44%? Calculate the standard error to 4 decimals. 6 Calculate the probability to 4 decimals, showing your steps along the way. P( 0316s 0)=P( 0325 0): 0- 0: 0