An overview of statistical inference for Week 8’s case study.
It is claimed that a solid-state switch developed by an appliance manufacturer’s research department will minimize appliance returns under the one-year full warranty by 3 percent to 6 percent. Tests are carried out on a group of the blenders built with the new switch, and a group with the old switch, for a year’s worth of wear to establish whether or not the claim can be upheld. When 300 blenders were tested, just twelve were returned. Twenty-one of the 300 blenders with the old switch would have been returned. You can utilize a statistical approach to verify or deny the research department’s assertion as an appliance manufacturing process manager.
Instructions
Produce an eight or ten-slide presentation for the plant director, including a cover and a source list:
The blenders manufactured by the appliance company have an issue.
Explain how you plan to solve the issue using statistical inference. You can back up your decision by citing a credible academic source.
Using Excel
Consider creating a detailed flowchart for the suggested statistical inference.
Excel should be used to perform all statistical calculations.
A flowchart should be placed on a slide.
Verify or disprove the claim of the research department if you can.
Select information from reliable, current, and acceptable sources. Make sure to cite each of the sources on your source page at least once in your work. To get assistance with research, writing, and citation, use the library or consult library guides.
Strayer Writing Standards are required for this course. The Strayer Writing Standards link can be found in the left-hand menu of your course for guidance and information. Inquire about extra instructions from your lecturer.
This assignment’s unique course learning outcome is:
Using statistical tools and data, provide recommendations to improve business operations.
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Week 8 Assignment – Case Study: Statistical Inference
Overview
The research department of an appliance manufacturing firm has developed a solid-state switch for its blender that the research department claims will reduce appliance returns under the one-year full warranty by 3%–6%. To determine if the claim can be supported, the testing department selects a group of the blenders manufactured with the new switch and a group with the old switch and subjects them to a normal year’s worth of wear. Out of 300 blenders tested with the new switch, twelve would have been returned. Twenty-one would have been returned out of the 300 blenders with the old switch. As the manager of the appliance manufacturing process, use a statistical procedure to verify or refute the research department’s claim.
Instructions
Create 8–10 slides, including a cover and a sources list, for a presentation to the director of the manufacturing plant in which you:
Summarize the problem with the appliance manufacturing firm’s blenders.
Propose the statistical inference to use to solve the problem. Support your decision using a scholarly reference.
Using Excel:
Develop a flowchart for the proposed statistical inference, including specific steps.
Compute all statistical calculations using Excel.
Place your flowchart in a slide.
Determine if you can verify or refute the research department’s claim.
Choose sources that are credible, relevant, and appropriate. Cite each source listed on your source page at least one time within your assignment. For help with research, writing, and citation, access the library or review library guides.
This course requires the use of Strayer Writing Standards . For assistance and information, please refer to the Strayer Writing Standards link in the left-hand menu of your course. Check with your professor for any additional instructions.
The specific course learning outcome associated with this assignment is:
Develop recommendations to improve business processes using statistical tools and analysis.
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