Need help to solve homework excercise from chapter 7.3 of triola stats. Please also provide explanation using technology either TI-84 or statcrunch.

Use the given information to find the number of degrees offreedom, the critical values2L and2R, and the confidence interval estimate of. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Nicotine in menthol cigarettes 98% confidence; n=22, s=0.26 mg.

df = (type a whole number)

2L(Round to three decimal places asneeded.)

2R(Round to three decimal places asneeded.)

The confidence interval estimate ofismg<

(Round to two decimal places asneeded.)