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Home Q & A Board Science-Related Homework Help Mathematics
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blahhumbug blahhumbug
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6 years ago
A lumber mill is tested for consistency by measuring the variance of board thickness. The target accuracy is a variance of 0.0035 square inches or less. If 30 measurements are made and their variance is 0.006 square inches, is there enough evidence to reject the claim that the standard deviation is within the limit at  = .01?

Yes, since the x2 test value 49.71 is greater than the critical value 49.588.


No, since the x2 test value 9.23 is less than the critical value 49.588.


Yes, since the x2 test value 49.71 is less than the critical value 50.892.


No, since the x2 test value 9.23 is less than the critical value 50.892.
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bio_manbio_man
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#2
4 years ago
Thank you for helping.
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3 years ago
Thank you!
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