Examlex
Instruction 8-3
A quality control engineer is interested in the mean length of timber poles being cut automatically by machine. The desired length of the insulation is 12 metres. It is known that the standard deviation in the cutting length is 0.15 metres. A sample of 70 cut poles yields a mean length of 12.14 metres. This sample will be used to obtain a 99% confidence interval for the mean length cut by machine.
-Referring to Instruction 8-3,the confidence interval goes from ________ to_________ .
Product Volume
The quantity of product generated in a chemical reaction measured in units of volume.
Oxygen
A chemical element with the symbol O, essential for respiration in most living organisms and used in various industrial processes.
Nitrogen
A diatomic gas that makes up about 78% of the Earth's atmosphere, essential for life as it is a major component of amino acids and nucleic acids.
Pressure
The force exerted per unit area upon a surface by the weight of the air above that surface in the atmosphere or by any gas in confined space.
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