The reserve capacities (in hours) of 18 randomly selected inverter batteries have a sample standard deviation of
Question:
The reserve capacities (in hours) of 18 randomly selected inverter batteries have a sample standard deviation of 0.40 hour. Use a 90% level of confidence.
Assume the sample is from a normally distributed population and construct the indicated confidence intervals for
(a) the population variance σ2
(b) the population standard deviation σ. Interpret the results.
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a 00986 03137 b 0314 0560 With 90 co...View the full answer
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Related Book For 
Elementary Statistics Picturing The World
ISBN: 9781292260464
7th Global Edition
Authors: Betsy Farber, Ron Larson
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