
Chapter 18
796
Example 18.11
A departmental store wants to open a branch in a rural area. The chief manager of the departmental
store wants to know the difference between the income of rural and urban households per month
for this purpose. An analyst of the rm has taken a random sample of 13 urban households and
13 rural households and the information obtained is presented in Table 18.16. Use the Mann–
Whitney U test to determine whether there is a signi cant difference between urban and rural
household income. Use
α
= 0.05.
TABLE 18.16
Random sample of 13 urban households and 13 rural households indicating monthly income
(in thousand rupees)