A student wants to know if Starbucks is overcharging students for coffee. The student gathers a sample of 25 medium sized cups of coffee in Edison and finds the mean cost for a cup of coffee is $3.68, and a standard deviation of $1.52. Use a 90% confidence interval to determine if the 4.95 price of a medium coffee at Starbucks is unreasonable. Explain your reasoning. Make sure your answer includes the following: 1. The calculator function/math you used to get the answer 2. The confidence interval with your answer rounded to 3 decimal places 3. Your decision of whether the $4.95 is unreasonable or reasonable 4. The specific numbers backing your decision 5. A formal interpretation of the results of the confidence interval