McDaniel Shipyards wants to develop a control chart to assess the quality of its steel plate.They take ten sheets of 1" steel plate and compute the number of cosmetic flaws on each roll.Each sheet is 20' by 100'.Based on the following data,develop limits for the 3-sigma control chart,plot the control chart,and determine whether the process is in control.
Definitions:
Nonparametric Counterpart
A statistical method or model that does not assume a predetermined form for the distribution of the data.
Test Statistic
A value calculated from sample data during a hypothesis test used to decide whether to reject the null hypothesis.
Matched Pairs Differences
A statistical technique used to compare two measurements taken under similar conditions from the same or matched subjects.
Sign Test Statistic
The calculated value used in the Sign Test to determine the statistical significance of the observed data.
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