Use the given information to find the number of degrees of freedom, the critical values x and x6. and the confidence interval estimate of o. It is reasonable to assume that a simple random sample has...

Extracted text: Use the given information to find the number of degrees of freedom, the critical values x and x6. and the confidence interval estimate of o. 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= 27, s=0.27 mg. Click the icon to view the table of Chi-Square critical values. df = 26 (Type a whole number.) Xỉ = (Round to three decimal places as needed.)