Reference no: EM131417632
Factors that impact productivity of an assembly line. A production manager who supervises an assembly operation wants to investigate the effect of the incoming rate (parts per minute), x1, of components and room temperature, x2, on the productivity (number of items produced per minute), y. The component parts approach the worker on a belt and return to the worker if not selected on the first trip past the assembly point. It is thought that an increase in the arrival rate of components has a positive effect on the assembly rate, up to a point, after which increases may annoy the assembler and reduce productivity.
Similarly, it is suspected that lowering the room temperature is beneficial to a point, after which reductions may reduce productivity. The experimenter used the same assembly position for each worker. Thirty-two workers were used for the experiment, two each assigned to the 16 factor level combinations of a 4 × 4 factorial experiment. The data, in parts per minute averaged over a 5-minute period, are shown in the table at the top of p. 710.
(a) Perform an analysis of variance for the data. Display the computed quantities in an ANOVA table.
(b) Write the linear model implied by the analysis of variance.
(c) Do the data provide sufficient evidence to indicate differences among the mean responses for the 16 treatments of the 4 × 4 factorial experiment? Test using α = .05.
(d) Do the data provide sufficient evidence to indicate an interaction between arrival rate x1 and room temperature x2 on worker productivity? Test using α = .05.
(e) Find the value of R2 that would be obtained if you were to fit the linear model in part b to the data.
(f) Explain why a regression analysis would be a useful addition to the inferential methods used in parts a-e.
|
What are the major sources of uncertainty
: What are the major sources of uncertainty that can affect global supply chain decisions? Consider the financial, logistic, political, natural, cultural, and technological sources of uncertainty in your response.
|
|
Describe the set of possible orders for given experiment
: An order for an automobile can specify either an automatic or a standard transmission, either with or without air conditioning, and with any one of the four colors red, blue, black, or white. Describe the set of possible orders for this experiment..
|
|
What are the considerations in data collection
: You have joined a new hospital and you have been reading some internal documents. You find that the hospital conducted a job satisfaction survey among its staff three years earlier. A market research firm had conducted the survey, analyzed the dat..
|
|
Which model will be most appropriate for staffing each group
: Write a two pages paper in Word format. Utilize at least three scholarly sources in your research. Apply APA standards to citation of sources.
|
|
Perform an analysis of variance for the data
: Perform an analysis of variance for the data. Display the computed quantities in an ANOVA table.- Find the value of R2 that would be obtained if you were to fit the linear model in part b to the data.
|
|
Stakeholders and stockholders of organization
: What is the difference between the stakeholders and stockholders of an organization? Explain the concept of "stakeholder management." In your opinion, should managers be solely interested in the stockholder management (maximizing shareholder wealt..
|
|
Prepare a short essay on being urban
: You are required to prepare a short essay on "Being Urban." Your essay should explore what you understand by the term "being urban".
|
|
Describe any source of complexity that may inhibit change
: Describe any source of complexity that may inhibit the change initiative you have proposed or describe a source of complexity that has effected your organization in the past.
|
|
Who are the gatekeepers of hula
: Develop an intellectual problem or question based on your hidden intellect topic. You will need to determine if your question or problem is manageable or has enough differing perspectives for a conversation(if you want to switch topics you need t..
|