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Following are the heights in inches of 12 two-year-old apple trees. Assume that the 6) population...

Following are the heights in inches of 12 two-year-old apple trees. Assume that the 6) population is normally distributed.

37.5 35.3 39.2 38.7 43.0 41.9 36.7 38.0 40.9 38.3 37.8 41.8

Construct a 90% confidence interval for the population standard deviation σ.
Math   Statistics-And-Probability   
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