A State university is interested in monitoring and controlling the number of students dropping every semester. The average academic drops in every semester is expected to be around 4 percent. Information about last 4 semester is as follows: Sample # Sample Size Number of Drops 1 200 12 2 120 12 3 200 10 4 150 14
A State university is interested in monitoring and controlling the number of students dropping every semester. The average academic drops in every semester is expected to be around 4 percent. Information about last 4 semester is as follows: Sample # Sample Size Number of Drops 1 200 12 2 120 12 3 200 10 4 150 14
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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A State university is interested in monitoring and controlling the number of students dropping every semester. The average academic drops in every semester is expected to be around 4 percent. Information about last 4 semester is as follows:
Sample # | Sample Size | Number of Drops |
1 | 200 | 12 |
2 | 120 | 12 |
3 | 200 | 10 |
4 | 150 | 14 |
Set up appropriate 3-standard deviation control limits for the problem. Are samples 1-4 under control? Explain.
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