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Presenter: Sebastian Tindall

DQO Training CourseDay 2

Introduction to Statistical Concepts:Demonstrations and Simulations

30 minutes(15 minute break)

Exercise 0

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Activities and Simulationsfor Day 2 & Day 3

Introduction to beads as target population1. Ex 1: Construct and compare histograms for n = 5 and n = 50

– Simulation for n = 5 and n = 50

2. Ex 2: Do hypothesis test using x-bar and introduction to alpha error– Simulation for n = 5 and n = 50

3. Ex 3: Do hypothesis test using 95% UCL – Simulation for n = 5 and n = 50

4. Ex 4: Do hypothesis test with true mean equal to LBGR, i.e., beta error– Simulation for n = 5 and n = 50

5. Ex 5a: Do hypothesis test for a very clean site– Simulation for n = 5 and n = 50

6. Ex 5b: Do test for a very dirty site– Simulation for n = 5 and n = 50

7. Other simulations and questions and answers

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Activities and Simulations

Materials Needed for Activities in Exercises 1-5 and Simulations:

One blank white FDH graphs for bead histograms per student

One blank gray DPGD graph per student

One Bic pen per student

One bag of beads per student

Five “Clean” site bag and Five “Dirty” site bag for class

Excel spreadsheet “Beads Sampling Activity” for class

MATLAB program Visual Decision Tutor for class

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Go to VDT 2 Beta 0.6

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Clear, 1 ppmClear w/ silver

sparkles, 2 ppmClear w/ gold

sparkles, 3 ppmWhite, 0 ppm Yellow, 4 ppm

Orange, 5 ppm Solid Red, 8 ppmClear Red, 6 ppmClear Red w/ silver

sparkles, 7 ppmClear Lilac, 9 ppm

Clear Blue, 10 ppm Clear Green, 12 ppmRoyal Blue, 11 ppm Solid Green, 13 ppm Black, 14 ppm

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Return from VDT 2 Beta 0.6

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End of Exercise 0

Thank you

Questions?

We will now take a 15 minute break.

Please be back in 15 minutes.