b. The freshness of a product at a superstore is rated on a scale of 1 to 5 with 5 being very fresh. From a random sample of 49 customers, the average score was 3.8. The standard deviation of this population is [1.7. i) Obtain a 95% condence interval for the population mean, ,u, the mean score for the distribution of all possible customers. (6 marks) ii) Does ,u lie in your interval obtained in part [1)? Explain (6 marks)