Question: Fisher (1925b, Section 41) quotes an experiment on the accuracy of counting soil bacteria. In it, a soil sample was divided into four parallel samples,

Fisher (1925b, Section 41) quotes an experiment on the accuracy of counting soil bacteria. In it, a soil sample was divided into four parallel samples, and from each of theses after dilution seven plates were inoculated. The number of colonies on each plate is shown below. Do the results from the four samples agree within the limits of random sampling? 

Plate / Sample 1234567 2 6 A 72 69 63 59 59 53 51 B C 74 78 72 74 70 70 69 58 66 58 52 D 69 67 66 64 64 58 56

Plate / Sample 1234567 2 6 A 72 69 63 59 59 53 51 B C 74 78 72 74 70 70 69 58 66 58 52 D 69 67 66 64 64 58 56 54 58 56 .

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