Working Lottery Winners. In a national poll taken on August 7-11, 2013, by Gallup, Inc., 1039 adults who were employed full or part time were asked the following question: " If you won 10 million dollars in the lottery, would you continue to work, or would you stop working? "Sixty-eight percent of the respondents said that they would continue to work.

(a) Is this study descriptive or inferential? Explain your answer.

(b) The title of the article discussing the survey was " In U.S., Most Would Still Work Even if They Won Millions. " Is the statement in quotes here descriptive or inferential? Explain your answer.

Short Answer

Expert verified

Part (a) The given study is descriptive.

Part (b) The given study is inferential.

Step by step solution

01

Part (a) Step 1. Given information.

The given statement is:

In a national poll taken on August 7-11, 2013, by Gallup, Inc., 1039 adults who were employed full or part-time were asked the following question: " If you won 10 million dollars in the lottery, would you continue to work, or would you stop working? "Sixty-eight percent of the respondents said that they would continue to work.

02

Part (a) Step 2. Classify the given study as either descriptive or inferential.

It is given in the study, it was asked 1039 adults who were employed full or part-time that if they won 10 million dollars in the lottery, would they still continue to work, or would they stop working right away.

The result is that Sixty-eight percent of the respondents voted that they would continue to work even if they won 10 million dollars in the lottery.

To put it another way, the given information is have been summarised.

As a result, we can classify the given study as descriptive.

03

Part (b) Step 1. Determine if the given statement is descriptive or inferential "In U.S., Most Would Still Work Even if They Won Millions."

Inferential statistics are statistics that are used to draw conclusions about a population based on a sample of that population.

In the given study the estimate is made based on a sampling of all people in the United States.

As a result, the research is based on inferential statistics.

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 Vaia!

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

Lifetimes of Flashlight Batteries.Two different options are under consideration for comparing the lifetimes of four brands of flashlight battery, using 20 flashlights.

(a) One option is to randomly divide 20 flashlights into four groups of 5 flashlights each and then randomly assign each group to use a different brand of battery. Would this statistical design be a completely randomized design or a randomized block design? Explain your answer.

(b) Another option is to use 20 flashlights - five different brands of 4 flashlights-each and randomly assign the 4 flashlights of each sign be a completely randomized design or a randomized block design? Explain your answer.

In Exercises 1.92-1.97, we present descriptions of designed experiments. In each case, identify the

(a) experimental units

(b) response variable

(c) factor (s)

(d) levels of each factor:-

(e) treatments.

Increasing Unit Sales. Supermarkets are interested in strategies to increase temporarily the unit sales of a product. In one study, researchers compared the effect of display type and price on unit sales for a particular product. The following display types and pricing schemes were employed.

  • Display types: normal display space interior to an aisle, normal display space at the end of an aisle, and enlarged display space.
  • Pricing schemes: regular price, reduced price, and cost.

Memorial Day Poll. In the year 2000, an on-line poll was conducted over Memorial Day weekend that asked people what they were doing to observe the holiday.

The choices were: (1) stay home and relax, (2) vacation outdoors over the weekend, or (3) visit a military cemetery.

More than 22,000 people participated in the poll, with 86% selecting option 1. Discuss this poll with regard to its suitability.

Adverse Effects of Prozac. Prozac ( fluoxetine hydrochloride ), a product of Eli Lilly and Company, is used for the treatment of depression, obsessive-compulsive disorder ( OCD ), and bulimia nervosa. An issue of the magazine Arthritis Today contained an advertisement reporting on the " ... treatment-emergent adverse events that occurred in 2 % or more patients treated with Prozac and with incidence greater than placebo in the treatment of depression, OCD, or bulimia. " In the study, 2444 patients took Prozac and 1331 patients were given placebo. Identify the

(a) treatment group.

(b) control group.

(c) treatments.

Comparing Gas Mileages. An experiment is to be conducted to compare four different brands of gasoline for gas mileage.

(a) Suppose that you randomly divide 24 cars into four groups of 6 cars each and then randomly assign the four groups to the four brands of gasoline, one group per brand. Is this experimental design a completely randomized design or a randomized block design? If it is the latter, what are the blocks?

(b) Suppose, instead, that you use six different models of cars whose varying characteristics (e.g., weight and horsepower) affect gas mileage. Four cars of each model are randomly assigned to the four different brands of gasoline. Is this experimental design a completely randomized design or a randomized block design? If it is the latter, what are the blocks?

(c) Which design is better, the one in part (a) or the one in part (b)? Explain your answer.

See all solutions

Recommended explanations on Math Textbooks

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.

Sign-up for free