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.   Nicotine in menthol cigarettes 98​% ​confidence; n=23​, s=0.28 mg.   LOADING... Click the icon to view the table of​ Chi-Square critical values.       Question content area bottom Part 1 df=2222 ​(Type a whole​ number.) Part 2 χ2L=9.5429.542 ​(Round to three decimal places as​ needed.) Part 3 χ2R=40.28940.289 ​(Round to three decimal places as​ needed.) Part 4 The confidence interval estimate of σ is enter your response here mg<σ

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