1. The Simcoe County Food Emporium claims that \"the typical customer spends $60 per visit.\" A sample of 12 customers revealed the following purchases, in dollars, spent last visit: $64 66 64 66 59 62 67 61 64 58 54 66 a. What is the point estimate of the population mean? b. Develop a 90% condence interval for the population mean. c. Is the restaurant's claim that the \"typical customer\" spends $60 per visit reasonable? Justify your