Posted by sireesha on .
three blocks of coal were analyzed by four chemists and the ash-content in the block was found to be under
1 11 111 1V
A 18 15 15 17
B 17 16 14 14
C 13 16 15 14
DO THE blocks differ in their ash-content?do the chemists differ significantly their analysis?also identify the following
9.Local control if any
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