Use the given information to find the number of degrees of freedom, the critical values 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. Nicotine in menthol cigarettes 90% confidence; n = 26, s = 0.22 mg. Click the icon to view the table of Chi-Square critical values. df = (Type a whole number.) x=(Round to three decimal places as needed.) X=(Round to three decimal places as needed.) The confidence interval estimate of a ismg

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