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Find the 95% confidence interval for the variance of the weights of containers of motor oil if a sample of 14 containers has a variance
Find the 95% confidence interval for the variance of the weights of containers of motor oil if a sample of 14 containers has a variance of 3.2. Assume the variable is normally distributed
a. | 5.382 <2< 26.576 |
b. | 1.68 <2< 8.31 |
c. | 2.319 <2< 5.155 |
d. | 1.296 <2< 2.883 |
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