The student will demonstrate the simple random, systematic, stratified, and clus

Question

The student will demonstrate the simple random, systematic, stratified, and cluster sampling techniques.

The student will explain each of the details of each procedure used.

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

The following section contains restaurants stratified by city into columns and grouped horizontally by entree cost (clusters).

A Stratified Sample

Pick a stratified sample, by city, of 20 restaurants. Use 25% of the restaurants from each stratum. Round to the nearest whole number.

Describe the procedure:

20. __________

Restaurants Stratified by City and Entree Cost

1. __________ 6. __________ 11. __________ 16. __________ 2. __________ 7. __________ 12. __________ 17. __________ 3. __________ 8. __________ 13. __________ 18. __________ 4. __________ 9. __________ 14. __________ 19. __________ 5. __________ 10. __________ 15. __________

20. __________

Restaurants Stratified by City and Entree Cost

Restaurants Used in Sample Entree Cost Under $10 $10 to under $15 $15 to under $20 Over $20 San Jose El Abuelo Taq, Pasta Mia, Emma's Express, Bamboo Hut Emperor's Guard, Creekside Inn Agenda, Gervais, Miro's Blake's, Eulipia, Hayes Mansion, Germania Palo Alto Senor Taco, Olive Garden, Taxi's Ming's, P.A. Joe's, Stickney's Scott's Seafood, Poolside Grill, Fish Market Sundance Mine, Maddalena's, Spago's Los Gatos Mary's Patio, Mount Everest, Sweet Pea's, Andele Taqueria Lindsey's, Willow Street Toll House Charter House, La Maison Du Cafe Mountain View Maharaja, New Ma's, Thai-Rific, Garden Fresh Amber Indian, La Fiesta, Fiesta del Mar, Dawit Austin's, Shiva's, Mazeh Le Petit Bistro Cupertino Hobees, Hung Fu, Samrat, Panda Express Santa Barb. Grill, Mand. Gourmet, Bombay Oven, Kathmandu West Fontana's, Blue Pheasant Hamasushi, Helios Sunnyvale Chekijababi, Taj India, Full Throttle, Tia Juana, Lemon Grass Pacific Fresh, Charley Brown's, Cafe Cameroon, Faz, Aruba's Lion & Compass, The Palace, Beau Sejour Santa Clara Rangoli, Armadillo Willy's, Thai Pepper, Pasand Arthur's, Katie's Cafe, Pedro's, La Galleria Birk's, Truya Sushi, Valley Plaza Lakeside, Mariani's

Explanation / Answer

now assign {1,2,3,....population size} to all restaurants in each stratum and randomly draw "sample size" number of restaurants from each stratum.

The restaurants corresponding to those numbers combined will represent the whole sample of size 20

Thanks

stratum population size sample size sample 1 13 3 2 12 3 3 9 2 4 12 3 5 12 3 6 12 3 7 14 3

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