Samples of DNA arecollected, and the four DNA bases ofA, G,C, and T are coded as1, 2,3, and4, respectively. The results are listed below. Construct a 90% confidence interval estimate of the mean. What is the practical use of the confidenceinterval?

1,

1,

2,

3,

4,

3,

4,

4,

3,

2

What is the confidence interval for the population mean?

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(Round to one decimal place asneeded.)