A random sample of 10 batteries yield a mean lifetime of z bar (average) = 2.4 years and a variance of = 0.5. Assume the battery life follow normal distribution, construct a 95% confidence interval for the population varianceo². (-12.64, -11.23) O Answer is not given in the choices. O (0.24, 1.67) O (11. 23, 13.26) O 18.90, 20.33)

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A random sample of 10 batteries yield a mean lifetime of z bar (average) = 2.4 years and a variance of ? = 0,5, Assume the battery life follow normal
distribution, construct a 95% confidence interval for the population variance 2.
O (-12.64, -11.23)
O Answer is not given in the choices.
O (0.24, 1.67)
O (11. 23, 13.26)
O 18.90, 20.33)
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Transcribed Image Text:A random sample of 10 batteries yield a mean lifetime of z bar (average) = 2.4 years and a variance of ? = 0,5, Assume the battery life follow normal distribution, construct a 95% confidence interval for the population variance 2. O (-12.64, -11.23) O Answer is not given in the choices. O (0.24, 1.67) O (11. 23, 13.26) O 18.90, 20.33) Next Previous No new data to save. Last checked at 7:20pm Subr Chp
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