The captain of a cruise is studying the views of tourists regarding catering services
and entertainment activities to be provided on the current trip of a cruise to Southern
Europe around the Mediterranean Sea.
The demographic data of tourists for the current trip are presented below:
Nationality
Age
Total
American
Asian
Australian
18 to 35
30
60
40
130
36 to 50
50
100
70
220
51 to 65
60
130
90
280
Above 65
100
180
90
370
Total
240
470
290
1000
There are 12 combinations of age and nationality, that is, tourists are divided into 12
groups using age and nationality.
(a) Describe the population of the study?
(b) Suppose 80 tourists are chosen at random using random numbers to be generated
using a computer program. Name this sampling method.
(c) Suppose stratified sampling is adopted in choosing tourists so that there is no
bias towards any groups. If 18 Asian tourists aged above 65 are chosen, find the
number of Australian tourists aged 36 to 50 to be chosen in the sample.
(d) If three groups are chosen at random from these 12 groups, all tourists of the
selected groups are covered in the survey. Name this sampling method.
(e) Suppose a tourist is chosen for every 10 tourists listed on the sampling frame.
Name this sampling method.
(f) Classify the following selected variables as quantitative or qualitative; and
further identify whether a quantitative variable is discrete or continuous.
(i) The most preferrable number of meals per day to be provided on the trip
(ii) The most preferrable cuisine for dinner to be provided on the trip (French
cuisine / Italian cuisine / Greek cuisine / Turkish cuisine)
(iii) Preferred amount of time spent on entertainment activities on the trip per
day (hours)
