Need help with parts a-eD. What is the probability that more than 5% of the 750 units will be returned for service?E. Why would it be unusual if in a random sample of 750 units 5% we return for service and why?

2. The quality control director of a small company that manufactures exercise equipment knows that 10% of their products are defective. Market research shows that only 30% of their customers will use the product in the first year after the sale. So, the manufacturer expects that 3% of the units will be returned for service under a one-year full warranty. This company expects to sell 750 units next year. (This problem is based on data from an actual company). For this problem, assume that next year's production can be considered a simple random sample of all the units produced. a. Describe (mean, standard deviation and shape) the sampling distribution of p, the proportion of the 750 units that will be returned for service. I b. What is the probability that more than 2.50% of the 750 units will be returned for service? C. What is the probability that between 2% and 4% of the 750 units will be returned for service