Statistics: Z-test – #116


Question: 3 different types of soils are used to grow strawberries. The yields (in quarts) for plots of the same size are shown here. Significance level=0.01, is there a difference in the yields of the 3 plots?

Soil A Soil B Soil C

32 43 50

38 45 56

31 49 58

40 46 54

39 51 52

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