Expert answer:Two-Factor ANOVA
Answer & Explanation:Harley (2003) examined effects on growth of the red algae Mazzaella parksii, which forms lawn-like
growths in the intertidal region. He focused on two factors: (1) location and
(2) herbivore abundance. The two locations were in areas along the shoreline below
where this algae normally occurs (Low zone) and in areas along the shoreline
where this algae does normally grows (Mid zone). For herbivore abundance, he
had areas where limpets (Lottia
species) were removed (Absent) and areas where limpets were not removed
(Present). Harley then measured the area covered by Mazzaella (in cm2) for each replicate plot, and obtained
the following data (NOTE: 0.5 has been added to each value to remove any zeroes
from the data):
Height
Herbivores
Area
Height
Herbivores
Area
low
absent
88.46
mid
absent
0.50
low
absent
1188.02
mid
absent
622.54
low
absent
2178.41
mid
absent
2168.20
low
absent
276.96
mid
absent
0.50
low
absent
594.26
mid
absent
26.42
low
absent
1470.77
mid
absent
38.20
low
absent
1140.90
mid
absent
2204.33
low
absent
3732.72
mid
absent
524.36
low
absent
1257.14
mid
absent
377.49
low
absent
2132.08
mid
absent
1378.88
low
absent
1254.00
mid
absent
201.56
low
absent
627.25
mid
absent
9.92
low
absent
0.50
mid
absent
467.03
low
absent
1689.11
mid
absent
276.96
low
absent
1307.41
mid
absent
2073.96
low
absent
1746.44
mid
absent
2297.80
low
present
143.44
mid
present
0.50
low
present
209.42
mid
present
1037.23
low
present
0.50
mid
present
1230.44
low
present
64.12
mid
present
307.59
low
present
0.50
mid
present
38.98
low
present
0.50
mid
present
170.15
low
present
763.91
mid
present
657.09
low
present
1847.76
mid
present
1332.54
low
present
9.92
mid
present
1407.94
low
present
69.62
mid
present
2095.95
low
present
0.50
mid
present
401.05
low
present
16.99
mid
present
99.46
low
present
0.50
mid
present
7.57
low
present
1294.05
mid
present
1610.57
low
present
12.28
mid
present
1665.55
low
present
7.57
mid
present
2012.69
A)
Use a two-factor ANOVA to analyze these data and
interpret your results. The data are not currently set up correctly for doing a
two-factor ANOVA in Excel, so you will likely need to rearrange them!
B)
Test these data to see if (1) they are normally
distributed and (2) the groups have equal variances.
How it works
- Paste your instructions in the instructions box. You can also attach an instructions file
- Select the writer category, deadline, education level and review the instructions
- Make a payment for the order to be assignment to a writer
- Download the paper after the writer uploads it
Will the writer plagiarize my essay?
You will get a plagiarism-free paper and you can get an originality report upon request.
Is this service safe?
All the personal information is confidential and we have 100% safe payment methods. We also guarantee good grades