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
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.2: Introduction To Probability
Problem 34E
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