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Chapter 1: Q. 78 (page 55)

YouPolls is a website that allows anyone to create and respond to polls. One question posted April 15asks:

鈥淒o you feel happy paying your taxes when members of the Obama administration are allowed to ignore their tax liabilities?鈥�[5]

As of April 25,11people responded to this question. Each participant answered 鈥淣O!鈥�

Which of the potential problems with samples discussed in this module could explain this connection?

Short Answer

Expert verified

Potential issues include the possibility of respondents who do not pay taxes responding to the survey.

Step by step solution

01

Definition

A sample statistic is statistical data derived from a small number of things.

02

Explanation 

The potential problems are given below:

  • the sample size is very low to do any conclusion
  • here may be chances that a single user can give an answer more than once.
  • since anyone can answer the question of the survey, hence there may be chances that those respondents who do not belong to taxes are responding to the survey.

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Most popular questions from this chapter

A scholarly article about response rates begins with the following quote:

鈥淒eclining contact and cooperation rates in random digit dial (RDD) national telephone surveys raise serious concerns about the validity of estimates drawn from such research.鈥�[6]The Pew Research Center for People and the Press admits: 鈥淭he percentage of people we interview 鈥� out of all we try to interview 鈥� has been declining over the past decade or more.鈥�[7]

a. What are some reasons for the decline in response rate over the past decade?

b. Explain why researchers are concerned with the impact of the declining response rate on public opinion polls.

A marketing company is interested in the proportion of people who will buy a particular product.

Studies are often done by pharmaceutical companies to determine the effectiveness of a treatment program. Suppose that a new AIDS antibody drug is currently under study. It is given to patients once the AIDS symptoms have revealed themselves. Of interest is the average (mean) length of time in months patients live once they start the treatment. Two researchers each follow a different set of 40 patients with AIDS from the start of treatment until their deaths. The following data (in months) are collected.

Researcher A:

3; 4; 11; 15; 16; 17; 22; 44; 37; 16; 14; 24; 25; 15; 26; 27; 33; 29; 35; 44; 13; 21; 22; 10; 12; 8; 40; 32; 26; 27; 31; 34; 29; 17; 8; 24; 18; 47; 33; 34

Researcher B:

3; 14; 11; 5; 16; 17; 28; 41; 31; 18; 14; 14; 26; 25; 21; 22; 31; 2; 35; 44; 23; 21; 21; 16; 12; 18; 41; 22; 16; 25; 33; 34; 29; 13; 18; 24; 23; 42; 33; 29

Determine what the key terms refer to in the example for Researcher A.

sample

A study was done to determine the age, number of times per week, and the duration (amount of time) of residents using a local park in San Antonio, Texas. The first house in the neighborhood around the park was selected randomly, and then the resident of every eighth house in the neighborhood around the park was interviewed.

鈥淒uration (amount of time)鈥� is what type of data?

a. qualitative(categorical); b. quantitative discrete; c. quantitative continuous

For the following exercises, identify the type of data that would be used to describe a response (quantitative discrete, quantitative continuous, or qualitative), and give an example of the data. percent of body fat
See all solutions

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