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In: Statistics and Probability

A sporting goods manufacturer claims that the variance of the strengths of a certain fishing line...

A sporting goods manufacturer claims that the variance of the strengths of a certain fishing line spool is 15.9. A random sample of 15 fishing line spools has a variance of 28. At α = 0.05, is there enough evidence to reject the manufacturer’s claim? Assume population of this variable is normally distributed.

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