O Points: 0 of 6 Use the given information to find the number of degrees of freedom, the critical values x- and x , 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. Platelet Counts of Women 98% confidence; n = 27, s = 65.8. Click the icon to view the table of Chi-Square critical values. df = (Type a whole number.)