Four technicians determined the percent moisture content of the samples of a powder manufactured by five different companies. Their determinations of moisture contents were as follows: Moisture...

Extracted text: Four technicians determined the percent moisture content of the samples of a powder manufactured by five different companies. Their determinations of moisture contents were as follows: Moisture Content (%) Companies Technicians 1 2 3 4 5 A 6. 10 11 10 8 11 12 9. 7 12 9. 10 8. 12 11 8 11 7 14 12 Test whether the per cent moisture content in the powder of five companies is same.