A manufacturer of carpentry screws claims that its production machine is very accurate and that the standard

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A manufacturer of carpentry screws claims that its production machine is very accurate and that the standard deviation of the length of all screws produced is 0.08 mm or less. A sample of 30 screws showed a standard deviation of 0.10. The test statistic to test the manufacturer's claim is

a. 18.56
b. 19.2
c. 45.31
d. 23.2

Posted Date: Dec 02, 2021 02:52 AM

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A manufacturer of carpentry screws claims that its production machine is very accurate and that the standard

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