/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q 1.53. Nonresponse. When responses are ... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 1: Q 1.53. (page 17)

Nonresponse. When responses are not obtained from some of the individuals in the sample because either those individuals cannot be reached or refuse to participate, we have nonresponse bias.

(a) Discuss some of the dangers of nonresponse.

(b) Many sample surveys that are reported in the media have rates as low as 10%. Explain the consequences of such low response rates in trying to generalize the results to the entire population.

Short Answer

Expert verified

Part (a) The resultant predicted value may be too high or too low.

Part (b) Overestimation or underestimation will result.

Step by step solution

01

Part (a) Step 1. Given information.

The given statement is:

When responses are not obtained from some of the individuals in the sample because either those individuals cannot be reached or refuse to participate, we have nonresponse bias.

02

Part (a) Step 2. Some of the dangers of nonresponse.

If some of the people in a sample do not complete the survey or have refused to participate, then the estimate will be different than if everyone in the sample completes it.

This results in a nonresponse bias in the study. The predicted value would be either too high or too low due to the nonresponse for the said survey.

03

Part (b) Step 1. Explanation.

When media reports on sample surveys, the response rate might be as low as 10%.

If the response rate is low, the estimate is more likely to have a nonresponse bias.

Hence. When the results are used to generalize the results to the population, it is evident that the estimate either overestimates or underestimates.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Ideally, in stratified sampling, the members of each stratum should be relative to the characteristic under consideration.

The members of a population have been numbered 1-100. A sample of size 30 is to be taken from the population, using cluster sampling. The clusters are of equal size 10, where cluster #1 consists of the members of the population numbered 1-10, cluster #2 consists of the members of the population numbered 11-20, and so forth.

(a) Apply Procedure 1.2 on page 18 to determine the sample (i.e., the numbers corresponding to the members of the population that are included in the sample).

(b) Suppose that, in Step 2 of Procedure 1.2, clusters #2, #6, and #9 are selected. Determine the sample.

Which of the following sampling procedures involve the use of probability sampling?

a . A college student is hired to interview a sample of voters in her town. She stays on campus and interviews 100 students in the cafeteria.

b . A pollster wants to interview 20 gas station managers in Balti more. He posts a list of all such managers on his wall, closes his eyes, and tosses a dart at the list 20 times. He interviews the people whose names the dart hits

Keno. In the game of keno, 20 balls are selected at random from 80 balls numbered 1-80.

(a) Use Table I in Appendix A to simulate one game of keno by obtaining 20 random numbers between 1 and 80. Start at the two-digit number in line number 5 and column numbers 31-32, read down the column, up the next, and so on.

(b) If you have access to a random-number generator, use it to solve part (a).

Regarding observational studies and designed experiments:

(a) Describe each type of statistical study.

(b) With respect to possible conclusions, what important difference exists between these two types of statistical studies?
See all solutions

Recommended explanations on Math Textbooks

Mechanics Maths

Read Explanation

Pure Maths

Read Explanation

Decision Maths

Read Explanation

Applied Mathematics

Read Explanation

Theoretical and Mathematical Physics

Read Explanation

Probability and Statistics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.