ber of Subgroups: • Subgroup Mean(X-Bar) • Grand Mean (Double X-Bar) • Subgroup Range (R) • Average Ra
ber of Subgroups: • Subgroup Mean(X-Bar) • Grand Mean (Double X-Bar) • Subgroup Range (R) • Average Ra
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
Related questions
Question
Develop the appropriate metrics:
• Sample Size, or Number of measurements in each Subgroup:
• Number of Subgroups:
• Subgroup
• Grand Mean (Double X-Bar)
• Subgroup
• Average Range (R-Bar)
• Calculate and Chartthe “Mean” and “Range”Upperand Lower
control limits
Notice any trends in the charts?
What could it mean? Or, future reading predictions?
Formulas for X-bar and range charts Above, and Statistical Constants below:
Subgroup Size A2 d2 D3 D4
2 1.880 1.128 ----- 3.268
3 1.023 1.693 ----- 2.574
4 0.729 2.059 ----- 2.282
5 0.577 2.326 ----- 2.114
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