Question Help ▼ 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...

Extracted text: Question Help ▼ 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 90% confidence; n= 21, s= 65.1, Click the icon to view the table of Chi-Square critical values. df = (Type a whole number.) (Round to three decimal places as needed.) (Round to three decimal places as needed.) The confidence interval estimate of o is (Round to one decimal place as needed.) Enter your answer in each of the answer boxes.