Need help to solve this question from chapter 8.3 of Triola statistics. Show steps and formulas to solve and explanation using TI-84 calculator.

Twelve different video games showingalcoholusewere observed. The duration times ofalcoholusewererecorded, with the times(seconds) listed below. Assume that these sample data are used with a0.01significance level in a test of the claim that the population mean is greater than90sec. If we want to construct a confidence interval to be used for testing thatclaim, what confidence level should be used for a confidenceinterval? If the confidence interval is found to be -37.4sec<<248.2sec, what should we conclude about theclaim?

79, 15, 560, 50, 0, 55, 213, 44, 191, 0, 2, 56

The confidence level should be___%

(Type an integer or a decimal. Do notround.)