Use the given information to find the number of degrees of​ freedom, the critical values chi Subscript Upper L Superscript 2 and chi Subscript Upper R Superscript 2 ​,and the confidence interval...

Use the given information to find the number of degrees of​ freedom, the critical values chi Subscript Upper L Superscript 2 and chi Subscript Upper R Superscript 2 ​,and the confidence interval estimate of sigma .It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Platelet Counts of Women 80​% ​confidence nequals 28​,sequals 65.4.

Extracted text: df = (Type a whole number.) x² = ] (Round to three decimal places as needed.) XR = (Round to three decimal places as needed.) The confidence interval estimate of o is mg <>< mg.="" (round="" to="" two="" decimal="" places="" as="">