Chapter 1. Tutorial: Sampling 2

1.1 Problem Statement

{30020,40111,52619,41510,72114,83261,10123,20371,02480,34205}
rand(0,9)
@table[$tableindex]
{Jung,Adelaja,Yajima,Fox,Modur,Jung,Adelaja,Jung,Jung,Burke}
@table01[$tableindex]
{Gupta,Jung,Jung,Jung,Hernandez,Gupta,Jung,Gupta,Gupta,Jung}
@table02[$tableindex]
{Mazzeo,Gao,Mani,Huo,Barnes,Barnes,Rodriguez,Barnes,Sanchez,Barnes}
@table03[$tableindex]
{Barnes,BArnes,Barnes,Barnes,Ding,Ding,Barnes,Ding,Barnes,Ding}}
@table04[$tableindex]

Here is a list of employees at a small firm that have been “numbered” for convenience:

Figure 1.1

1.2 Step 1

questions

The following is part of a random number table:

16124 45998 60679 05487 98825 29942 13522 01868 85705 12053

Question 1.1

PHRfNcD18/cE/fTBhliiM2n5MZZDdVNBVR5EYolRO5sse6/TFeC+VYqD2wjsfcZPh9CB32bnfBhfY42B4AZUnRu0QLb18OPVe6ggNX1GoDrtTqLVYPmFkaUa/fMMWvnoP3FVDBKPz1+XQuTncyiUvJHDpPv4NkoO7qZ1eJ48IRA+OjtzfQM2yA==
Correct.
Incorrect.

Question 1.2

The first three numbers using this method would then be zhw5AiG32jY=, DDH6Tw1RFEk=, and then DxnlX4coZmM=.

Correct.
Incorrect.

Question 1.3

yDC8dJddzzcBlufVzh0wa8lP9NYXQAW9YRYgHo2t0fJT8rrVB1mrq2oNgZ2kFU+xi2xjFzUateS5iHE7OmC+LVLpXTBA8sfD95dK+fqXFgjuqPIdKc/g4A==
Correct.
Incorrect.

Question 1.4

0DoNZgNKgsfW06ZgH6vTjqpcYlogsa0cnWay0K5citDkd8jzZx9n80EE5Gm/llxtysOM5oFVxResaEF7GBFMP+waYxPMymwYvu3oNNnKAXLwwCQl
Correct.
Incorrect.

1.3 Step 2

Question 1.5

In a simple random sample, each element of the list is chosen with +ISNqUSclntimKbX1Bap+4I4hEK/v1sn probability and 0DCcWHYwVJynuwQXo4e9FYvhhXWvB1v3jgeo3Wh3ONBHuJo1 the previous selection.

Correct.
Incorrect.

Question 1.6

A quick sample would pick the first 5 employees (numbered 1 to 5). This is an example of a YHm0eBMYX+ApcKmBV+GMCqg9Gsrfq9awnoa+nLlQXEgyhpQn sample.

Correct.
Incorrect.

1.4 Step 3

Here is the list of employees with their genders added:

Figure 1.2

The following is part of a different random number table:

52833 $table 18038 63473 88380 33013 86286 84407 66031 39555

Question 1.7

We wish to select a separate random sample of size 3 for males and of size 5 for females using this new random number table. This design is called a z8N7vS9PxSmq15xko6yWbAx5IPXzw8jrrYZkO+j7+mEUDo1x random sample.

Correct.
Incorrect.

Question 1.8

The first two males selected using this new random number table are (enter the names in order of selection) QPQrapfiAJestZB/ and 8Ljb0MPqTCiSSJXs .

Correct.
Incorrect.

Question 1.9

The first two females selected using this new random number table are (enter the names in order of selection) WcmlByclKjcTiVbP and sb0dkfzO4ZorA7O5.

Correct.
Incorrect.

Question 1.10

qmD+QriHRUoXV97X7vdeDhSgT4r03FIdcM/IAlUVVgBETlysIMazp9AIlVVV3VHtUTEu685IwZdhgOrsJKOzKFF3NcO3hiKCy8CDCBP0Qq/LCrTuqtbruEYgDSTj2X02SvednxkJn2DXqCY0jyZN9LnFkW1eqAs6eKv5ArUpr2x8pCUYYRxRwYOxkl02p3Z2T8P8P73fx40cbHMZ84wEo8TDonn11jsCbQ/WdKqPhykXBl8UrjR5glwQB5/bVHyoDxRxPRoTuxRJcbE5Ms78SjsOXoDp9VcpVxmnHkNPtCyZsa2lZD2phn9p3p5+z25LuLA/bl/n+VIdV3P4UVhSR8/lbm5BJEKve923Ri3TgPYLp0u5TCR5+dOiy/bifL29XKDd8Gybo8xt7l6OunlxPJSO6j3PoteYQstsa2LlO+oRXcs0Lfibixramok3NxW/
Correct.
Incorrect.

Question 1.11

Suppose that only 3 of the males respond. This is an example of XvUmTb0zeV+2gqDRnjdmThJK5vDBC8sRxPyGJAK6Si/rqINyjcgzcvXef49wMQVXHffh0g==.

Correct.
Incorrect.