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'''Topic and Concept:''' Measurement, [:Measurement#ErrorAccuracy: 1A20. Error and Accuracy] |
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| '''Description:''' | '''Abstract:''' |
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| A. '''''Please do not spill the beads!''''' | * '''''Please do not spill the beads!''''' |
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| '''Setup:''' 1. NA |
'''Setup and Procedure:''' * N/A |
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| 1. Beads are loose and can be lost easly. 1. Use a large tray to collect loose beads. |
* Beads are loose and can be lost easily. * Use a large tray to collect loose beads. |
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| '''Demonstration:''' Sampling (Statistics) |
'''Discussion:''' Sampling is using a subset of a set of data to determine the overall characteristics of the set. From Wikipedia, the three main advantages of sampling are that the cost is lower, data collection is faster, and since the data set is smaller it is possible to ensure homogeneity and to improve the accuracy and quality of the data. |
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| '''Videos:''' * [https://www.youtube.com/user/LectureDemostrations/videos?view=1 Lecture Demonstration's Youtube Channel] |
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N/A |
* [http://en.wikipedia.org/wiki/Normal_distribution Normal Distribution - Wikipedia] * [https://en.wikipedia.org/wiki/Sampling_%28statistics%29 Sampling - Wikipedia] |
[:PiraScheme#Mechanics: Table of Mechanics Demonstration] |
[:MEEquipmentList: List of Mechanics Equipment & Supplies] |
[:Demonstrations:Lecture Demonstrations] |
Sampling Demonstrator, 1A20.15
Topic and Concept:
Measurement, [:Measurement#ErrorAccuracy: 1A20. Error and Accuracy]
Location:
Cabinet: [:MechanicsCabinet:Mechanic (ME)]
Bay: [:MechanicsCabinetBayA2:(A2)]
Shelf: #1
attachment:Sampling-02-400.jpg
Abstract:
This is a Lansford 5000 Colored Bead Sampling Demonstrator with 4 wooden sampling paddles of different sizes; (10x10), (10x5), (5x5), and a (5x2). Statistical sampling of 5000 color balls consisting of; 50%White, 30#Green, 10%Red, 5%Black, 3%Violet, 1%Yellow, 0.5%Pink, and 0.5%Blue.
Equipment |
Location |
ID Number |
|
|
|
Bowl of 5000 Beads |
ME, Bay A2, Shelf #1 |
|
(10x10) |
ME, Bay A2, Shelf #1 |
|
(10x5) |
ME, Bay A2, Shelf #1 |
|
(5x5) |
ME, Bay A2, Shelf #1 |
|
(5x2) |
ME, Bay A2, Shelf #1 |
|
Large Tray |
ME, Bay A2, Shelf #1 |
|
Important Setup Notes:
Please do not spill the beads!
Setup and Procedure:
- N/A
Cautions, Warnings, or Safety Concerns:
- Beads are loose and can be lost easily.
- Use a large tray to collect loose beads.
Discussion:
Sampling is using a subset of a set of data to determine the overall characteristics of the set. From Wikipedia, the three main advantages of sampling are that the cost is lower, data collection is faster, and since the data set is smaller it is possible to ensure homogeneity and to improve the accuracy and quality of the data.
attachment:Sampling-02-250.jpg |
attachment:Sampling-03-250.jpg |
attachment:Sampling-04-250.jpg |
attachment:Sampling-05-250.jpg |
Videos:
[https://www.youtube.com/user/LectureDemostrations/videos?view=1 Lecture Demonstration's Youtube Channel]
References:
[http://en.wikipedia.org/wiki/Normal_distribution Normal Distribution - Wikipedia]
[https://en.wikipedia.org/wiki/Sampling_%28statistics%29 Sampling - Wikipedia]
[:Instructional:Home]