IS question: 25 poini(s) possible + . Use the given information to find the number of degrees of freedom, the critical values x'? and Z;- and the confidence interval estimate of o it 1S reasonable to assuy i random sample has been selected from a population with a normal distribution Nicotine in menthol cigarettes 95% confidence; n = 29,5=0.28 mg. & Click the icon to view the table of Chi-Square critical values df= | (Type a whole number.) x = ] (Round to three decimal places as needed.) X;?; = (Round to three decimal places as needed ) The confidence interval estimate of o is | | mg