1 / 7

Exercise 1

DQO Training Course Day 2. Exercise 1. Populations, Histograms, Range & Simulations. Presenter: Sebastian Tindall. (45 minutes) (75 minute Lunch Break). Exercise 1. Overview of Activities Begin construction of DPGD Record population values Construct sample histogram:

cadee
Download Presentation

Exercise 1

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. DQO Training Course Day 2 Exercise 1 Populations, Histograms, Range & Simulations Presenter: Sebastian Tindall (45 minutes) (75 minute Lunch Break)

  2. Exercise 1 Overview of Activities • Begin construction of DPGD • Record population values • Construct sample histogram: • Take a random sample • Construct and compare sample histograms (FDH) and ranges to population • Combine data so that n = 50 and construct a new class histogram and find new class range

  3. Exercise 1 • The bag of beads represent the entire population. • Each bead represents the concentration of one location within a site (one member of the population). • Five samples (beads) will be collected, randomly. • Students will generate histograms for the 5 beads.

  4. Exercise 1 Begin construction of DPGD • Remove the FDH and DPGD graphs from the binder. • Set the FDH graphs aside. • Label the DPGD with: • AL = 7 (Red ink) • LBGR = 6 (Blue ink) • Gray Region (Blue ink) • Set DPGD aside until Exercise 3

  5. Exercise 1 Record population values: • Population N = • Sample n = • Can we assume sampling without replacement methods apply? • In other words, is n less than 5% of N? _____(Note: 5/450 x 100% = 1.1%.) • True range, i.e., Max - Min = = 450 5 Yes 14 - 0 14

  6. Exercise 1 (contd.) Construct sample histogram • Take one FDH graph. • Randomly select 5 beads and record values on the FDH graph. • Students will plot the range of the five samples. • The class will combine the data from their five samples to obtain a fifty sample result. • The computer will plot the histogram and range of the fifty samples. • The computer will simulate the 5 and 50 sample events, histograms, and ranges. • Students will discuss whether 5 or 50 samples are adequate to characterize the site.

  7. End of Exercise 1 Thank you Questions? We will now take a 75 minute lunch break. Please be back at 1:00 PM.

More Related