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8. A sample of the length in inches for newborns is given below. Assume that lengths are normally distributed. Find the 90% confidence interval of

A sample of the length in inches for newborns is given below. Assume that lengths are normally distributed. Find the 90% confidence interval of the mean length. Length 16.3 19.2 17.3 19 15.4 17.3 19.5 20.1 21.3 21.2

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