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In: Statistics and Probability

Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of these...

Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of these gears measured in foot-pounds is an important characteristic. A random sample of 10 gears from supplier 1 results in  and s1=14 while another random sample of 16 gears from the second supplier results in   and s2=23. Is there sufficient evidence to conclude that the variance of impact strength is different for the two suppliers? Use

Which one?

The variances of impact strength significantly differ at the 0.05 level of significance.

The variances of impact strength do not significantly differ at the 0.05 level of significance.

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Expert Solution

The variances of impact strength do not significantly differ at the 0.05 level of significance.

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