Samples of DNA are collected, and the four DNA bases of A, G, C, and T are coded as 1, 2, 3, and 4, respectively. The results are listed below. Construct a 90% confidence interval estimate of the mean. What is the practical use of the confidence interval?
1, 1, 2, 4, 3, 4, 3, 3, 4, 2
What is the confidence interval for the population mean μ?
<μ<
(Round to one decimal place as needed.)