The number of hours of reserve capacity of 10 randomly selected automotive batteries is shown to the right. Assume the sample is taken from a normally distributed population. Construct 90% confidence intervals for (a) the population variance o² and (b) the population standard deviation . ... 1.89 1.56 1.63 1.73 1.72 1.97 1.38 1.56 1.41 2.08 (a) The confidence interval for the population variance is (). (Round to three decimal places as needed.) D

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