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

95%

confidence interval estimate of the mean. What is the practical use of the confidence interval?

2,

2,

1,

4,

3,

3,

3,

4,

4,

1

Part 1

What is the confidence interval for the population mean

?