Question

3.56「our differen e rates were in esti ated n an experiment on C machine prodir a component par used in an arc at aux ary pow er unit e manu ur ng engn er n charge the expen en na s nata ca a man on interest may be affected by the teed rate. However, prior experience has indicated that only dispersion effects are likely to be present. That is, changing the food rate does not affect the average dimension, but it could affect dimensional variability. The engineer makes five production runs at each feed rate and obtains the standard deviatian of the critical dimension (in 10 mm). The data are shown belaw Assume that all runs were made in random order Feed Rate (in/min) 1 2 3 4 5 10 0.09 0.10 0.13 0.08 007 0.060.090.12 0.07 0.12 0 11 008 008005006 0.19 0.13 0.15 0.20 0.11 14 16 a Does feed rate have any ellect on the standard deviation n? b. Use the residuals frcm his expenmen to investgate model adequacy. Are there any problems with expernmental validity? of this critical dimensio

Answer 1