Question: Use the given information to nd the number oi degrees of freedom, The critical values xi and 12R, and the condence interval estimate of E.

Use the given information to nd the number oi degrees of freedom, The critical values xi and 12R, and the condence interval estimate of E. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Nicotine in menthol cigarettes 99% condence; n=2?, 5 = 0.23 mg. a Click the icon to view the table of ChiSquare critical values. df= (Type a whole number.)
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