Provide the following for each of the data sets below. Remember, you already did
ID: 3362648 • Letter: P
Question
Provide the following for each of the data sets below. Remember, you already did part A on last week's homework, so you should be copying those from the previous assignment. A. Pretest used, pretest p-value, pretest conclusion, transformation (if necessary) B. Complete provided ANOVA table C. Conclusion of ANOVA D. Post-hoc results (with p-value for each pair of significantly different means) E. Discuss results (of ANOVA and any post-hoc testing) PLEASE NOTE: This assignment has a separate sheet for you to write your answers on There have been several reports that house plants grow at different rates if they are exposed to music. To test this idea, you obtained 30 plants, and randomly chose 10 of plants each for exposure to rock music, exposure to classical music, and a control (no music). Several plants died over the course of the experiment. Below are the results of the experiment (cm/week) 1. Control Rock Music Classical 5.6 7.2 8.9 17.6 6.9 12.7 4.8 10.7 5.6 6.4 8.2 7.8 9.9 11.8 10.6 7.9 14.4 5.9 13.8 16.9 3.3 15.1 16.4Explanation / Answer
Hypothesis of the data,
we are given above the table of ANOVA,
The hypotheses of interest in an ANOVA are as follows:
where k = the number of independent comparison groups.
the formulas for calculation for ANOVA,
df
ss
mss
f
p
Between
k-1
SSb
MSB=SSB/k-1
F=MSB/MSE
within
n-k
SSE
MSE=SSE/n-k
total
n-1
SST
the analysis table for anova is
Source of Variation
SS
df
MS
F
P-value
F crit
Between Groups
62.65378
2
31.32689
1.659021
0.211417
3.402826
Within Groups
453.1862
24
18.88276
Total
515.84
26
the p-value is >0.05 , conclusin is
there is no significance diffreance between the three categories.
we can do post hoc test after significant p-value
he p-value is insignificant so there is need to do post hock test.
thanks
df
ss
mss
f
p
Between
k-1
SSb
MSB=SSB/k-1
F=MSB/MSE
within
n-k
SSE
MSE=SSE/n-k
total
n-1
SST
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