Chapter 5: Producing Data

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Chapter 5 Producing Data

• Section 1 Designing Samples
• Section 2 Designing Experiments
• Section 3 Simulating Experiments

2
Producing Data

• Observational Studies eg, sample studies
• Experiments where treatments are imposed

3
Section 1 Designing Samples

4
Basic Terms

• Population
• Individuals
• Frame
• Sample
• Sampling Method
• Bias

5
Problems with Sampling Humans

• Undercoverage
• Nonresponse
• Response Bias
• Poorly Worded Questions

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Sampling Methods

• Census
• Judgmental Sample
• Simple Random Sample
• Systematic Sample
• Cluster Sample
• Stratified Sample
• Random Point Sample

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EXAMPLE 5.4
JL Records
Johnson Commodities
Keiser Construction
Liu's Chinese Restaurant
Magic Tan
Peerless Machine
Photo Arts
River City Books
Riverside Tavern
Rustic Boutique
Satellite Services
Scotch Wash
Sewer's Center
Tire Specialties
Von's Video Store
A-1 Plumbing
Accent Printing
Action Sport Shop
Anderson Construction
Bailey Trucking
Balloons, Inc
Bennett Hardware
Best's Camera Shop
Blue Print Specialties
Central Tree Service
Classic Flowers
Computer Answers
Darlene's Dolls
Fleisch Realty
Hernandez Electronics
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Table of Random Digits

• 19770 91175 49511 69704 86138 81435 95560 14343
• 59840 86655 62459 31365 60106 19052 26485 28546
• 06012 75809 46034 19930 52092 13354 70806 09348
• 69077 24565 72637 92000 51209 47330 46843 62291
• 24472 80236 15086 76837 40642 66808 38940 53446
• 58988 17175 93183 72944 08321 38177 54014 94035
• 39514 39465 10116 70337 99704 12025 17997 74465
• 86085 37306 07409 85181 84907 88556 28363 75094

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Homework

• Chapter 5 Section 1
• 1, 2, 7, 8, 9, 10, 11