Monogram masters advertises on its website that 92% of customer orders were received within 5 working days. They performed an audit from a random sample of 200 of the 3,000 orders that month and it shows 175 orders were received on time. Part A: Can we use a normal approximation? explain

part b: if monogram masters customers really receive 92% of its orders within 5 working days, what is the probability that the proportion in the random sample of 200 orders is the same as the proportion found in the audit sample or less? explain

PLSSS HELP ME! thanks so much in advance!