Twenty-five samples of size 4 resulted in grand average as 30.0 minutes and average range as 2.5 minutes for the Excellante Cleaning Company’s average time to completely clean a rug. Estimate the standard deviation of the process. Please type your answer in two decimal places.

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Ответ:

meganwintergirl

07.01.2023

Mathematics

Distance between (2, 5) and (8, 5) = 8 - 2 = 6Distance between (8, 5) and (8, 3) = 5 - 3 = 2Distance between (8, 3) and (2, 3) = 8 - 2 = 6Distance between (2, 3) and (2, 5) = 5 - 3= 2
Total length of border = 6 + 2 + 6 + 2 = 16

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