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MGT 449 Week 4 Individual Assignment - Quality Textiles International Scenario

MGT 449 Week 4 Individual Assignment - Quality Textiles International Scenario

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Quality Textiles International Quality Textiles International is an organization that weaves fabric and then prepares the required sheet lengths as desired by customers. They have received recent complaints that the fabric weight, measured in ounces per square inch, is not meeting customer requirements, which are very close to the control limits. Quality Textiles International’s quality assurance department checks the fabric weight on regular basis and knows that their process for fabric weight has a mean of 2.73 oz/in2 and a standard deviation The following table shows 50 fabric weight measurements of fabric samples collected by the quality assurance department: Observation Fabric Weight Calculate the Mean and the Standard deviation on the lab collected samples. Is the mean and standard deviation still the same as the original process? 1 2.78 2 2.46 Mean of the 50 fabric weights is 2.98 oz/in^2 and the standard deviation is 0.52 oz. These values are different from the established values of 2.73 and 0.31 for the process. 3 3 4 2.8 Build a histogram of the data frequencies. 5 2.71 The out of control cases our in the red color.
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