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The sample45.8 ,46.9 ,45.2 ,46.0 ,46.4 ,46.1 ,45.8 ,47.0 ,46.1 and45.9 is drawn from a normally distributed population. Find a95 % confidence interval for the

The sample45.8

,46.9

,45.2

,46.0

,46.4

,46.1

,45.8

,47.0

,46.1

and45.9

is drawn from a normally distributed population. Find a95

confidence interval for the variance

of the population and hence test the claim that=1

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