/*! 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} Problem 11 A survey of affluent Americans (... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 2: Problem 11

A survey of affluent Americans (those with incomes of \(\$ 75,000\) or more) indicated that \(57 \%\) would rather have more time than more money (USA Today, January 29,2003 ). a. What condition on how the data were collected would make the generalization from the sample to the population of affluent Americans reasonable? b. Would it be reasonable to generalize from the sample to say that \(57 \%\) of all Americans would rather have more time than more money? Explain.

Short Answer

Expert verified
When generalizing from a sample to the population, it's crucial to ensure representative sampling. In this case, the sample representation might be valid for affluent Americans if they all had an equal chance of being surveyed. However, generalizing the findings to all Americans regardless of income would be less reasonable, given the different lifestyle and income inequalities among different demographics within the country.

Step by step solution

01

Assessing generalization to the Affluent American population

To correctly generalize from the sample to the entire population of affluent Americans, the survey should have been administered in a way that ensures it is representative of this group. This signifies that every affluent American should have had an equal chance to be part of the survey. This can be achieved through random sampling methods.
02

Analyzing generalization to the Entire American population

Expand the reasoning from step 1 to consider the population of all Americans, including those not classified as affluent. The survey result of \(57 \%\) of affluent Americans preferring more time than money might not be applicable to all Americans. This is mainly because the income level and lifestyle of affluent Americans may differ significantly from others, thereby influencing their preference.

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

The following paragraph appeared in USA Today (August 6,2009\()\) : Cement doesn't hold up to scrutiny A common treatment that uses medical cement to fix cracks in the spinal bones of elderly people worked no better than a sham treatment, the first rigorous studies of a popular procedure reveal. Pain and disability were virtually the same up to six months later, whether patients had a real treatment or a fake one, shows the research in today's New England Journal of Medicine. Tens of thousands of Americans each year are treated with bone cement, especially older women with osteoporosis. The researchers said it is yet another example of a procedure coming into wide use before proven safe and effective. Medicare pays \(\$ 1,500\) to \(\$ 2,100\) for the outpatient procedure.

Red wine contains flavonol, an antioxidant thought to have beneficial health effects. But to have an effect, the antioxidant must be absorbed into the blood. The article "Red Wine is a Poor Source of Bioavailable Flavonols in Men" (The Journal of Nutrition [2001]: 745-748) describes a study to investigate three sources of dietary flavonol- red wine, yellow onions, and black tea-to determine the effect of source on absorption. The article included the following statement: We recruited subjects via posters and local newspapers. To ensure that subjects could tolerate the alcohol in the wine, we only allowed men with a consumption of at least seven drinks per week to participate ... Throughout the study, the subjects consumed a diet that was low in flavonols. a. What are the three treatments in this experiment? b. What is the response variable? c. What are three extraneous variables that the researchers chose to control in the experiment?

Doctors have expressed concern about young women drinking large amounts of soda and about their decreased consumption of milk ("Teenaged Girls, Carbonated Beverage Consumption, and Bone Fractures," Archives of Pediatric and Adolescent Medicine [2000]: \(610-613\) ). In parts (a)-(d), construct two questions that might be included in a survey of teenage girls. Each question should include possible responses from which the respondent can select. (Note: The questions as written are vague. Your task is to clarify the questions for use in a survey, not just to change the syntax!) a. How much "cola" beverage does the respondent consume? b. How much milk (and milk products) is consumed by the respondent? c. How physically active is the respondent? d. What is the respondent's history of bone fractures?

A study of college students showed a temporary gain of up to 9 IQ points after listening to a Mozart piano sonata. This conclusion, dubbed the Mozart effect, has since been criticized by a number of researchers who have been unable to confirm the result in similar studies. Suppose that you wanted to see whether there is a Mozart effect for students at your school. a. Describe how you might design an experiment for this purpose. b. Does your experimental design include direct control of any extraneous variables? Explain. c. Does your experimental design use blocking? Explain why you did or did not include blocking in your design. d. What role does random assignment play in your design?

Explain why some studies include both a control group and a placebo treatment. What additional comparisons are possible if both a control group and a placebo group are included?
See all solutions

Recommended explanations on Math Textbooks

Statistics

Read Explanation

Geometry

Read Explanation

Mechanics Maths

Read Explanation

Theoretical and Mathematical Physics

Read Explanation

Pure Maths

Read Explanation

Applied Mathematics

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.