91Ó°ÊÓ

The given statement is:

Students in the dormitories of a university in the state of New York live in clusters of four double rooms, called suites. There are 48 suites, with eight students per suite.

First of all, number the suites from 1 to 48.

After that use a table of random numbers to select three of the 48 suites at random.

At last, utilize the 24 dormitory occupants who live in the three suites as the sample.

Due to the fact that students usually choose buddies from their classrooms to be their suitemates.

Cluster sampling would almost certainly not be a representative sample in this situation.

This is due to the fact that suitemates and friends frequently have similar viewpoints.

According to proportional allocation, the number of freshmen, sophomores, juniors, and seniors chosen should be 8, 7, 6, and 3 accordingly.

Using a table of random numbers, 8 of the 128 freshmen dormitory inhabitants were randomly selected from a stratified sample of 24 dormitory occupants ranging from 1 to 128.

Now to select 7 of the 112 sophomore dormitory occupants at random, number the inhabitants from 1 to 112 and utilize a table of random numbers:

Number the juniors dormitory occupants from 1 to 96, then use a table of random numbers to choose 6 of the 96 residents at random.

Then number the senior dormitory residents from 1 to 48, then choose three at random from a table of random numbers.