Use the given information to find the number of degrees of​ freedom, the critical values χ2L and χ2R​, and the confidence interval estimate of σ. It is reasonable to assume that a simple random sample...

Use the given information to find the number of degrees of​ freedom, the critical values χ2L and χ2R​, and the confidence interval estimate of σ.
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=24​, s=65.9.