Use the One-Standard-Deviation Chi-Square Interval Procedure to Obtain the Specified $\sigma$

question 70

Multiple Choice

Use the one-standard-deviation chi-square interval procedure to obtain the specified confidence interval for thepopulation standard deviation $\sigma$ . . Assume that the population has a normal distribution.
-The daily intakes of milk (in ounces) for ten five-year old children selected at random from one school were: $\begin{array} { l l l l l } 29.1 & 27.8 & 13.0 & 19.4 & 22.7 \\ 19.1 & 25.5 & 14.2 & 19.2 & 20.3 \end{array}$

Find a $99 \%$ confidence interval for the standard deviation, $\sigma$ , of the daily milk intakes of all five-year olds at this school.

• A)\(0.82\) to \(3.26 \mathrm { oz }\)
• B) \(3.29\) to \(12.13 \mathrm { oz }\)
• C) \(3.29\) to \(10.89 \mathrm { oz }\)
• D) \(3.18\) to \(10.89 \mathrm { oz }\)

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