Discussion in 'Math' started by sulemansarwar, May 16, 2011.

  1. sulemansarwar

    Thread Starter New Member

    May 16, 2011
    any one can help me to solve this one ....

    Question 4:
    An automotive engineer was investigating the difference between four assembly methods (A, B, C and D) on the time required to assemble a component. Four operators were selected for the study. The engineer suspected that the effect of fatigue would cause a trend in the time required for the assembly: whichever methods was used, the time required for the last assembly was likely to be greater than the time required for the first. He therefore designed the experiment as shown below, with results on a coded scale.

    Order of Operator
    assembly 1 2 3 4
    1 C 10 D 14 A 7 B 8
    2 B 7 C 18 D 11 A 8
    3 A 5 B 10 C 11 D 9
    4 D 10 A 10 B 12 C 14

    (a) Identify the experimental design used. Briefly explain its advantages for this experiment and comment on any disadvantages.

    (b) Analyse the data from this experiment. You can use SPSS or MINITAB for the analysis.

    (c) Calculate Fisher's LSD for the difference between assembly methods and summarise the method means.
  2. someonesdad

    Senior Member

    Jul 7, 2009
    Sorry, we don't do your homework for you. Show your work and ask questions about the parts you're unsure about.

    Of course, there's always some newbie here who wants to show off his/her erudition, so they may answer your question for you. Thus, if you're lazy, just stick around and hope someone hands it to you on a platter. Then you have to figure out if their answer is correct or not. :D Or a mean person might even hand you the wrong answer -- imagine that!