# 1.5: Sampling Experiment (Worksheet)

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Work in groups on these problems. You should try to answer the questions without referring to your textbook. If you get stuck, try asking another group for help.

## Student Learning Outcomes

• The student will demonstrate the simple random, systematic, stratified, and cluster sampling techniques.
• The student will explain the details of each procedure used.

In this exercise, you will be asked to pick several random samples of companies from the list below. In each case, describe your procedure briefly, including how you might have used the random number generator, and then list the companies in the sample you obtained.

The following table contains companies stratified by industry type into rows and grouped vertically by Stock Price at close on 20 September 2023 (clusters)

Companies Used in Sample
Stock Price Under $50$50 to under $100$100 to under $200 Over$200
apparel, fitness, footwear, retail american eagle outfitters
footlocker
nordstrom
puma
nike
crocs
target the home depot
costco
automotive, aviation, logistics, manufacturing porsche
honda
southwest airlines
delta airlines/td>
bmw group
toyota
tesla
fedex
consumer goods, food & beverage, food, healthcare unilever colgate palmolive
the coca cola company
starbucks
proctor & gamble
johnson & johnson
"mcdonald's
chipotle
hershey company
cryptocurrency, e-commerce, financial services, finance block coinbase
shopify
amazon
jpmorgan chase & co
american express
visa
mastercard
entertainment, gaming, hospitality, luxury goods, music ubisoft
nintendo
roblox
the walt disney company airbnb
hilton
marriott
lvmh
spotify
netflix
social media, technology pinterest
zoominfo
philips
uber
cisco
zoom video communications
logitech
amd
apple
salesforce / slack
microsoft
nvidia

A Simple Random Sample

Pick a simple random sample of 15 companies.

2. Complete the table with your sample.
 1. __________ 6. __________ 11. __________ 2. __________ 7. __________ 12. __________ 3. __________ 8. __________ 13. __________ 4. __________ 9. __________ 14. __________ 5. __________ 10. __________ 15. __________

A Systematic Sample

Pick a systematic sample of 15 companies.

2. Complete the table with your sample.
 1. __________ 6. __________ 11. __________ 2. __________ 7. __________ 12. __________ 3. __________ 8. __________ 13. __________ 4. __________ 9. __________ 14. __________ 5. __________ 10. __________ 15. __________

A Stratified Sample

Pick a stratified sample, by stock price, of 10 companies. Round any decimals to the nearest whole number.

2. Complete the table with your sample.
 1. __________ 6. __________ 2. __________ 7. __________ 3. __________ 8. __________ 4. __________ 9. __________ 5. __________ 10. __________

A Stratified Sample

Pick a stratified sample, by industry grouping, of 20 companies. Round any decimals to the nearest whole number.

2. Complete the table with your sample.
 1. __________ 6. __________ 11. __________ 16. __________ 2. __________ 7. __________ 12. __________ 17. __________ 3. __________ 8. __________ 13. __________ 18. __________ 4. __________ 9. __________ 14. __________ 19. __________ 5. __________ 10. __________ 15. __________ 20. __________

A Cluster Sample

Pick a cluster sample of companies from two industry groupings. The number of companies will vary.