Work piece size and shape appropriate. The number of 15 persons noticed that most have very high satisfaction. The number 9 people accounted for 60 percent of the children is high number of 6 people 40 percent.
Specimen size and shape suitable for 15 people found that most have very high satisfaction of 9 members representing 60 per cent, followed by a high level of 6 people, representing 40 percent.