uestion 2 The Warren County Telephone Company claims in its annual report that “the typical customer spends $60 per month on local and long distance service”. A sample of 12 subscribers revealed the following amounts spent last month. $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% confidence interval for the population mean. c. Is the company’s claim that the “typical customer” spends $60 per month reasonable? Justify your answer. Note: 1.please clear answer no whois one (a),(b) & (c) 2. No need excel formula!

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