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Home Q & A Board Science-Related Homework Help Mathematics
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k123p k123p
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6 years ago
A lathe is set to cut bars of steel into lengths of 6 cm. The lathe is considered to be in perfect adjustment if the average length of the bars it cuts is 6 cm. A sample of 121 bars is selected randomly and measured. It is determined that the average length of the bars in the sample is 6.08 cm. The population standard deviation is 0.44 cm. Determine whether or not the lathe is in perfect adjustment. Use a .05 level of significance.
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lsellers6lsellers6
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6 years ago
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k123p Author
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6 years ago
Good timing, thanks!
Natalie Price
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Yesterday
This site is awesome
africa143
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2 hours ago
Just got PERFECT on my quiz
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