| The number of hours of reserve capacity of 1010 randomly selected automotive batteries is shown to the right. | 1.791.79 | 1.861.86 | 1.581.58 | 1.691.69 | 1.731.73 | | 1.951.95 | 1.371.37 | 1.551.55 | 1.421.42 | 2.052.05 | |
|
Assume the sample is taken from a normally distributedpopulation. Construct
9595?%
confidence intervals for? (a) the population variance
sigma?squared2
and? (b) the population standard deviation
sigma?.
?(a) The confidence interval for the population variance is
?(nothing?,nothing?).
?(Round to three decimal places as? needed.)
