Brain Volume Using all of the brain volumes listed in Data Set 8 “IQ and Brain Size”, we get this 95% confidence interval estimate: 9027.8 < σ2 < 33,299.8, and the units of measurement are (cm3)2. Identify the corresponding confidence interval estimate of σ and include the appropriate units. Given that the original values are whole numbers, round the limits using the round-off rule given in this section. Write a statement that correctly interprets the confidence interval estimate of σ.
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