Chapter 1. Tutorial: Sampling 1

Problem Statement

{100, 125, 150, 200, 250, 275}
rand(0,5)
100[0]
{900, 875, 850, 800, 750, 725}
rand(0,5)
900[0]
{10, 12.5, 15, 20, 25, 27.5}
rand(0,5)
10[0]
{300, 325, 350, 360, 375, 400}
rand(0,5)
325[1]
{60, 65, 70, 72, 75, 80}
rand(0,5)
65[1]

Consider students at your college or university with 20,000 undergraduates and 10,000 graduate students enrolled. You are interested in estimating the average summer earnings (April -> August) of undergraduate students. The Registrar provides you with a list of 1000 undergraduate students selected at random. You send them a questionnaire by email and receive responses from 100 students.

Step 1

questions

Question 1

The population is

A.
B.
C.
D.
Correct.
Incorrect.

Step 2

questions

Question 4

The response rate is ____%.
Correct.
Incorrect.

Step 3

In order to get more responses for your questionnaire, you decide to wait outside the student building and stop the first 500 students who pass you, of which another 325 students agree to answer your survey.

questions

Question 6

The sample size of the second sample is __________
Correct.
Incorrect.