Question: o test whether the mean time needed to mix a batch of material is the same for machines produced by three manufacturers, a chemical company

o test whether the mean time needed to mix a batch of material is the same for machines produced by three manufacturers, a chemical company obtained the following data on the time (in minutes) needed to mix the material.

Manufacturer
1 2 3
20 29 20
27 25 20
25 31 24
20 31 16

Use Fisher's LSD procedure to develop a 95% confidence interval estimate (in minutes) of the difference between the means for manufacturer 1 and manufacturer 2. (Round your answers to two decimal places.)

 min to min

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