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# Following Are the Heights in Inches of 12 Two-Year-Old Apple $\begin{array}{llllll}\hline 37.5 & 35.3 & 39.2 & 38.7 & 43.0 & 41.9 \\\hline 36.7 & 38.0 & 40.9 & 38.3 & 37.8 & 41.8 \\\hline\end{array}$

Question 46
Multiple Choice
Question 46
Multiple Choice

## Following are the heights in inches of 12 two-year-old apple trees. Assume that the population is normally distributed.$\begin{array}{llllll}\hline 37.5 & 35.3 & 39.2 & 38.7 & 43.0 & 41.9 \\\hline 36.7 & 38.0 & 40.9 & 38.3 & 37.8 & 41.8 \\\hline\end{array}$Construct a $90 \%$ confidence interval for the population standard deviation $\sigma$ .

A) $( 1.75,3.62 )$
B) $( 1.86,3.28 )$
C) $( 1.77,3.54 )$
D) $( 1.69,3.39 )$

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