STAT 1350: Elementary Statistics

Lab Activity #3 Name(s)______

Simple Random and Stratified Random Sampling Date ______

The following table contains restaurants in Ohio cities listed by entrée costs.

Under $10 / $10- under $15 / $15 – under $20 / Over $20
Columbus / American Bistro
Fish and Grill
Buca di Beppo
Cap City Diner / Benihana
Cameran’s / Fish Market
De Novo / Gilberts
Ella’s
Due Amici
Marcella’s
Cincinnati / Django Taco
Zip’s Café
Green Panava / Mantra on the Hill
Europa Bistro
Via Vite / The Phoenix
Grand Finale
Local 127 on Vine / Montgomery Inn
Jeff Ruby’s
Primavista
Toledo / Mancy’s
La Scola
Packo’s Café
Zia’s / Elephant Bar
Sakura’s / Georgio’s / Flower Drum
Capers
Dayton / Majaraja
Thai-Rific
Sidebar
Coco’s / Pine Club
Jay’s Seafood
Franco’s
Elsa’s / PF Chang’s
Rue Dumaine
Tank’s Bar & Grill / Bellbrook
Cleveland / Abuelo’s
A Taste Above
Great Lakes Brew
Greenhouse Tavern / 56 West
Acappella
Akira Hibachi
3 Birds / Addy’s
Lola’s / Academy Tavern
Blue Point Grille
Youngstown / Lemon Grove Café
Springfield Grille
Upstairs
Station Square
Caffe Capri / Outback
Davidson’s
Leo’s
Lanai Lounge
Another Round / Nicolinni’s
Salvatore’s
Cafe 422
Akron / Crave
Bricco
House of Hunan
Barley House / Tangier
Ken Stewart’s Grille
The Lockview
Luigi’s / Diamond’s
Aladdin’s
Cilantro / Chin’s Place
Lembo’s

In this activity, you will be asked to pick random samples. In each case, describe your procedure, including how you might have used the random number generator or Table A in your text, then list the restaurants in the sample you obtained.

STAT 1350: Elementary Statistics

Lab Activity #______Name(s)______

Simple Random and Stratified Random Sampling Date ______

A Simple Random Sample

1.  Pick a simple random sample of 15 restaurants.

a.  Describe the procedure:

b.  List the 15 restaurants.

2.  / 3. 
5.  / 6. 
8.  / 9. 
11.  / 12. 
14.  / 15. 

Stratified Sample

2.  Pick a stratified sample, by entrée cost, of 20 restaurants. Select 5 restaurants from each stratum.

a.  Describe the procedure:

b.  List the 20 Restaurants

2.  / 3.  / 4. 
6.  / 7.  / 8. 
10.  / 11.  / 12. 
14.  / 15.  / 16. 
18.  / 19.  / 20. 

Stratified Sample

3.  Pick a stratified sample, by city, of 14 restaurants. Select 2 restaurants from each stratum.

a.  Describe the procedure

b.  List the 14 restaurants

1.  / 2.  / 3.  / 4. 
6.  / 7.  / 8. 
10.  / 11.  / 12. 
14.