2. The effect of two factors---per-chamber volume ratio (V) and injection timing (T) on the parts per million of noxious gas emitted from an engine was studied. The volume ratio was set at three equi-spaced levels and the time was set at three equi-spaced levels. Two engines were built for each of the nine treatment combinations and the amount of the gas emitted was recorded for the 18 engines as shown in the Table. Time Volume (T) Low Medium High Short 6.27 8.08 7.34 5.43 Medium| 6.94 6.51 8.04 7.87 7.48 8.61 7.52 8.32 Long 7.22 8.65 9.02 7.05 8.97 9.07 a) Test the effect of volume b) Test the effect of time c) Test the effect of the interaction
2. The effect of two factors---per-chamber volume ratio (V) and injection timing (T) on the parts per million of noxious gas emitted from an engine was studied. The volume ratio was set at three equi-spaced levels and the time was set at three equi-spaced levels. Two engines were built for each of the nine treatment combinations and the amount of the gas emitted was recorded for the 18 engines as shown in the Table. Time Volume (T) Low Medium High Short 6.27 8.08 7.34 5.43 Medium| 6.94 6.51 8.04 7.87 7.48 8.61 7.52 8.32 Long 7.22 8.65 9.02 7.05 8.97 9.07 a) Test the effect of volume b) Test the effect of time c) Test the effect of the interaction
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 32E
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2. The effect of two factors---per-chamber volume ratio (V) and injection timing
(T) on the parts per million of noxious gas emitted from an engine was
studied. The volume ratio was set at three equi-spaced levels and the time was
set at three equi-spaced levels. Two engines were built for each of the nine
treatment combinations and the amount of the gas emitted was recorded for
the 18 engines as shown in the Table.
Time
Volume
(T)
Low
Medium High
7.34
7.87
Short
6.27
8.08
5.43
8.04
Medium 6.94
7.48
8.61
6.51
7.52
8.32
Long
7.22
8.65
9.02
7.05
8.97
9.07
a) Test the effect of volume
b) Test the effect of time
c) Test the effect of the interaction
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