Back to 13.2 The F Distribution and the F Ratio

13.2 Exercise 1

Avg difficulty 2.5

As part of an experiment to see how different types of soil cover would affect slicing tomato production, Marist College students grew tomato plants under different soil cover conditions. Groups of three plants each had one of the following treatments:

  • Bare soil
  • A commercial ground cover
  • Black plastic
  • Straw
  • Compost

All plants grew under the same conditions and were the same variety. Students recorded the weight in grams of tomatoes produced by each of the n = 15 plants, as seen in the table.

Bare: n1 = 3 Ground Cover: n2 = 3 Plastic: n3 = 3 Straw: n4 = 3 Compost: n5 = 3
2,625 5,348 6,583 7,285 6,277
2,997 5,682 8,560 6,897 7,818
4,915 5,482 3,830 9,230 8,677


Create the one-way ANOVA table.

OpenStax Statistics, 13.2 The F Distribution and the F Ratio, exercise 1

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