Textbook Question
Determine whether the survey question is biased. If the question is biased, suggest a better wording.
How much do you exercise during an average week?
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Ch. 1 - Introduction to Statistics
Larson8th EditionElementary Statistics: Picturing the WorldISBN: 9780137493470
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Table of contents
- Ch. 1 - Introduction to Statistics87
- Ch. 2 - Descriptive Statistics176
- Ch. 3 - Probability184
- Ch. 4 - Discrete Probability Distributions102
- Ch. 5 - Normal Probability Distributions183
- Ch. 6 - Confidence Intervals154
- Ch. 7 - Hypothesis Testing with One Sample165
- Ch. 8 - Hypothesis Testing with Two Samples134
- Ch. 9 - Correlation and Regression87
- Ch. 10 - Chi-Square Tests and the F-Distribution87
Larson8th EditionElementary Statistics: Picturing the WorldISBN: 9780137493470Not the one you use?Change textbook
Chapter 1, Problem 1.1.24
Use the Venn diagram to identify the population and the sample.
Verified step by step guidance1
Step 1: Understand the concept of population and sample. In statistics, the population refers to the entire group of individuals or items that we are interested in studying, while the sample is a subset of the population that is selected for analysis.
Step 2: Analyze the Venn diagram. The diagram shows two groups: 'Incomes of adults in Nevada who own homes' (inside the blue circle) and 'Incomes of adults in Nevada who do not own homes' (outside the blue circle but within the larger rectangle).
Step 3: Identify the population. The population in this case is represented by the larger rectangle, which includes all adults in Nevada regardless of whether they own homes or not. This is the entire group being studied.
Step 4: Identify the sample. The sample is represented by the blue circle, which includes only the incomes of adults in Nevada who own homes. This is the subset of the population being analyzed.
Step 5: Relate the population and sample. The sample is a specific part of the population, and conclusions drawn from the sample can be used to infer characteristics about the population, provided the sample is representative.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Population
In statistics, the population refers to the entire group of individuals or items that share a common characteristic. In the context of the Venn diagram, the population consists of all adults in Nevada, encompassing both homeowners and non-homeowners. Understanding the population is crucial for making generalizations and drawing conclusions from a sample.
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Population Standard Deviation Known
Sample
A sample is a subset of the population selected for analysis, intended to represent the larger group. In the Venn diagram, the sample could be the incomes of a specific group of adults in Nevada who own homes or do not own homes. Analyzing a sample allows researchers to make inferences about the population without needing to study every individual.
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05:11Sampling Distribution of Sample Proportion
Venn Diagram
A Venn diagram is a visual tool used to illustrate the relationships between different sets. In this case, it shows the overlap between the incomes of adults in Nevada who own homes and those who do not. This representation helps clarify how the sample and population are related, making it easier to identify which groups are included in the analysis.
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5:14Probability of Mutually Exclusive Events
Related Practice
Textbook Question
Determine whether the study is an observational study or an experiment. Explain.
A study used periodic blood pressure readings and brain MRIs of adults to find that adults with long periods of high blood pressure were more likely to develop cerebral small blood vessel disease. (Source: American Heart Association)
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Textbook Question
Which part of the survey described in Exercise 31 represents the descriptive branch of statistics? What conclusions might be drawn from the survey using inferential statistics?
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Textbook Question
"Identify the sampling technique used, and discuss potential sources of bias (if any). Explain.
After a hurricane, a disaster area is divided into 200 equal grids. Thirty of the grids are selected, and every occupied household in the grid is interviewed to help focus relief efforts on what residents require the most."
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Textbook Question
Determine the level of measurement of the data listed on the horizontal and vertical axes in the figure.
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Textbook Question
Identify the sampling technique used, and discuss potential sources of bias (if any). Explain.
Questioning university students as they leave a college cafeteria, a researcher asks 342 students about their eating habits.
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