Question: An industrial engineer is studying the hand insertion of electronic
An industrial engineer is studying the hand insertion of electronic components on printed circuit boards in order to improve the speed of the assembly operation. She has designed three assembly fixtures (F1, F2, and F3) and two workplace layouts (Ll and L2) that seem promising. Specialized operators are required to perform the assembly, and it was initially decided to randomly select four operators from the many qualified operators at the plant. However, because the workplaces are in different locations within the plant, it is difficult to use the same operators for each layout. Therefore, the four operators randomly chosen for layout 1 are different individuals from the four operators randomly chosen for layout 2. Each of the operators assembles 4 circuit boards for each of the three fixture types, with the 12 circuit boards assembled in random order. The 96 assembly times are measured in seconds. The engineer is interested in the effects of assembly fixtures (F), workplace layout (L), and operator (O) on the average time required to assemble the circuit boards.
Answer to relevant QuestionsRefer to Exercise 18.4. In Exercise 18.4 A meat science researcher designed a study to investigate the impact of increasing the portion of grain (and hence decreasing the portion of hay) in the daily ration for cattle on the ...In Exercise 15.1, we described an experiment in which a horticulturist was investigating the effectiveness of five methods for the irrigation of blueberry shrubs. The methods are surface, trickle, center pivot, lateral move, ...An incomplete block design consisted of six blocks (B1, B2, B3, B4, B5, and B6) and six treatments (T1, T2, T3, T4, T5, and T6). The treatments were randomly assigned to the blocks in the following manner. a. What are the ...Refer to Exercise 19.23. Use the Tukey-Kramer W for determining treatment differences, with α = .05. In Exercise 19.23 A physician was interested in comparing the effects of six different antihistamines in persons extremely ...Functionalized styrenes are extremely useful building blocks for organic synthesis and for functional polymers. One of the most general syntheses of styrenes involves the combination of an aryl halide with a vinyl ...
Post your question