A Taguchi experiment is to be performed on the effects of lift, bore, stroke, and compression on engine performance with horsepower as the outcome variable. The factors were tested at each of the following levels in hopes of improving engine horsepower.
Lift (L) 2.75 2.90
Bore (B) .10 .30
Stroke (S) .50 .60
Compression © 8.50 12.00
The following experiment was used and the results of all trials are as follows:
Trial L B S C Response
1 1 1 1 1 384
2 2 1 1 2 285
3 1 2 1 2 341
4 2 2 1 1 322
5 1 1 2 2 401
6 2 1 2 1 259
7 1 2 2 1 310
8 2 2 2 2 375
Determine the best levels for each factor and state your conclusions.