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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
    adidas
    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
    google
    apple    		 salesforce / slack
    microsoft
    nvidia
    adobe

    A Simple Random Sample

    Pick a simple random sample of 15 companies.

    1. Describe your procedure.
    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.

    1. Describe your procedure.
    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.

    1. Describe your procedure.
    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.

    1. Describe your procedure.
    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.

    1. Describe your procedure.
    2. Complete the table with your sample.
      1. ________ 6. ________ 11. ________ 16. ________ 21. ________
      2. ________ 7. ________ 12. ________ 17. ________ 22. ________
      3. ________ 8. ________ 13. ________ 18. ________ 23. ________
      4. ________ 9. ________ 14. ________ 19. ________ 24. ________
      5. ________ 10. ________ 15. ________ 20. ________ 25. ________

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