Business, 18.10.2021 23:00 lilie080202

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 600 units next year. (This problem is based on data from an actual company.) a. Describe the sampling distribution of p, the proportion of the 600 units that will be returned for service.
b. What is the probability that more than 3% of the 600 units will be returned for service?
c. What is the probability that between 2% and 3.5% of the 600 units will be returned for service?
d. What is the probability that more than 5% of the 600 units will be returned for service?
e. Would It be unusual if In a random sample of 600 units 5% were returned for service & why?

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