As part of an experiment to see how different types of soil cover would affect s
ID: 3157591 • Letter: A
Question
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: Create the one-way ANOVA table.Explanation / Answer
ANOVA: Single Factor
SUMMARY
Groups
Count
Sum
Average
Variance
Bare
3
10537
3512.3333
1510201.3333
Cover
3
16512
5504.0000
28252.0000
Plastic
3
18973
6324.3333
5643406.3333
straw
3
23412
7804.0000
1562743.0000
compost
3
22772
7590.6667
1478760.3333
ANOVA
Source of Variation
SS
df
MS
F
P-value
F crit
Between Groups
36648560.9333
4
9162140.2333
4.4810
0.0248
3.4780
Within Groups
20446726.0000
10
2044672.6000
Total
57095286.9333
14
Level of significance
0.05
ANOVA: Single Factor
SUMMARY
Groups
Count
Sum
Average
Variance
Bare
3
10537
3512.3333
1510201.3333
Cover
3
16512
5504.0000
28252.0000
Plastic
3
18973
6324.3333
5643406.3333
straw
3
23412
7804.0000
1562743.0000
compost
3
22772
7590.6667
1478760.3333
ANOVA
Source of Variation
SS
df
MS
F
P-value
F crit
Between Groups
36648560.9333
4
9162140.2333
4.4810
0.0248
3.4780
Within Groups
20446726.0000
10
2044672.6000
Total
57095286.9333
14
Level of significance
0.05
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