Question 1
Conde Nast Traveler did an annual survey for its readers, to determine the best
hotels in the world. The following table lists 9 hotels in Europe for the survey.
Class of Guest Number of Total
Hotel
Country
Room
Rooms
Score
Graveteye Manor England
$$
18
83.6
Villa d'Este
Italy
$$$$
166
86.3
Hotel Prem
Germany $
54
77.8
Hotel d'Europe
Palace Luzem
Royal Crescent
Hotel
Hotel Sacher
Due de Bourgogne
France
Sweden
$$
$$
47
326
76.8
80.9
England
Australia
Belgium
$$$
$$$
$
45
120
10
73.7
85.5
76.9
Villa Gallici
France
$$
22
90.6
(1)Is this data set a population or a sample?
(2) How many units in this data set?
(3) How many variables in this data set?
(4) Which variables are qualitative and quantitative ?
Question 2
Classify each of the following variables or data as:
Quantitative ? and or Qualitative, thus nominal or ordinal? Interval or ratio?
1. Restaurant rating
***** **** *** ** *
2. Seasonal average temperature
25oC, 32oC, 18oC, 14oC
3. Statistics course letter grade
A B C D E F
4. Personal computer ownership
Yes No
5. Vary of Electricity Supply Voltages
218V, 220V, 222V, 225V, etc.
6. Exchange on which a stock is traded
AMEX, NYSE, NASDAQ, Other
7. Students’ Final Scores
92, 89, 73, 55, 42, etc.
Question 3
Determent which of the following are quantitative and qualitative:
1.
2.
3.
The number of girl friends you have
How much you love your boy friend
Your skin color
Question 4
Are the following Category mutually exclusive and exhaustive?
1. UIC student into Statistics Major, Computer Science major: mutually exclusive but not
exhaustive
2. Human into Man and Woman: mutually exclusive and exhaustive
3. People into studying and working: neither mutually exclusive nor exhaustive