Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The ratings were obtained at one university in a state. Construct a confidence interval using a 95 % confidence level. What does the confidence interval tell about the population of all college students in the state?
3.9 , 3.2 , 4.2 , 4.7 , 3.1 , 3.9 , 3.6 , 4.4 , 4.4 , 4.3 , 4.3 , 3.8 , 3.4 , 4.2 , 3.6
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Part 1
What is the confidence interval for the population mean mu ?
enter your response hereless thanmuless than
enter your response here (Round to two decimal places as needed.)