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Chapter 4: Q. 12 (page 237)

Apartment living You are planning a report on apartment living in a college town. You decide to select three apartment complexes at random for in-depth interviews with residents.

a. Explain how you would use a line of Table D to choose an SRS of 3complexes from the following list.

b. Use line 117to select the sample. Show how you use each of the digits.

Short Answer

Expert verified

a. Number the 33complexes from 01to 33alphabetically.

b. Starting at line 117we read off the following numbers: 38(ignore) 1679(ignore) 85(ignore) 3262(ignore) 18

Step by step solution

01

Part (a) Step 1 : Given information

No. of apartment complex , n=3

We have to choose an SRS of 3apartment complex from the given list apartment complex name:

02

Part (a) Step 2 : Simplification

Number the 33complexes from 01to 33alphabetically. Go to the random number table, choose a starting point (any line, such as line 117) and recorded 2digit numbers until you have 3unique numbers between 01and 33, ignoring repeats, 00, and 31-99.

03

Part (b) Step 1 : Given information

We have to use line 117 to select the sample to show how we have used each of the digits from the following table :

04

Part (b) Step 2 : Simplification

Starting at line 117we read off the following numbers: 38(ignore) 1679(ignore) 85(ignore) 3262(ignore) 18. So we have picked: Fairington (16), Waterford Court (32) and Fowler (18)

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