Answer to Question #270281 in Economics for Chilu

Question

A company wants to select a sample of 1200 customers for a marketing survey in four

districts. The following data are availableMarketing

region

Population

Frequency

Variability

(standard

deviation)

Cost per unit

(Zambian

kwacha)

District 1 18000 4.3 18

District 2 600 6.4 10

District 3 12000 9.4 39

District 4 24000 7.1 24

a) How many persons should be selected from each district;

i) In proportion to the population frequency in each district;

ii) In proportion to the population frequency and variability in each district;

iii) In proportion to the population frequency, variability and cost per unit in each

district?

Answer 1

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