Warning: foreach() argument must be of type array|object, bool given in /var/www/html/web/app/themes/studypress-core-theme/template-parts/header/mobile-offcanvas.php on line 20

Pricey pizza- The cost of a meal might affect how customers evaluate and appreciate food. To investigate, researchers worked with an Italian all-you-can-eat buffet to perform an experiment. A total of139 subjects were randomly assigned to pay either\(4 or\)8 for the buffet and then asked to rate the quality of the pizza on a9-point scale. Subjects who paid \(8 rated the pizza11% higher than those who paid only\)4.

Identify the explanatory and response variables, the experimental units, and the treatments.

Short Answer

Expert verified

The explanatory and reaction variables, the experimental units, and the remedies are price of food , high-satisfactory score of food , Italian all-you-can-consume buffet and fee of $4 or $8for the buffet and score of pizza on 9factor scale .

Step by step solution

01

Given information

We need to find that the explanatory and response variables, the experimental units, and the treatments.

02

Explanation

The reaction variable is the focal point of a query in a examine or experiment. An explanatory variable is one which explains modifications in that variable.

In this situation reaction variable is exceptional score of meals and explanatory variable is value of meals.

The experimental gadgets is Italian all-you-can-consume buffet .


Treatment right here is fee of either$4or $8for the buffet and score of pizza on 9factor scale .

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

Online reviews Many websites include customer reviews of products, restaurants, hotels,

and so on. The manager of a hotel was upset to see that 26%of reviewers on a travel

website gave the hotel โ€œ1starโ€โ€”the lowest possible rating. Explain how bias in the

sampling method could affect the estimate.

Want a snack- Can snacking on fruit rather than candy reduce later food consumption? Researchers randomly assigned12women to eat either65 calories of berries or 65calories of candy. Two hours later, all 12women were given an unlimited amount of pasta to eat. The researchers recorded the amount of pasta consumed by each subject. The women who ate the berries consumed133 fewer calories, on average. Identify the

explanatory and response variables, the experimental units, and the treatments.

Funding for fine arts The band director at a high school wants to estimate the percentage

of parents who support a decrease in the budget for fine arts. Because many parents attend

the schoolโ€™s annual musical, the director surveys the first 30parents who arrive at the

show. Explain how bias in the sampling method could affect the estimate.

Wording bias Comment on each of the following as a potential sample survey question.

Is the question clear? Is it slanted toward a desired response?

a. โ€œSome cell phone users have developed brain cancer. Should all cell phones come with

a warning label explaining the danger of using cell phones?โ€

b. โ€œDo you agree that a national system of health insurance should be favored because it

would provide health insurance for everyone and would reduce administrative costs?โ€

c. โ€œIn view of escalating environmental degradation and incipient resource depletion,

would you favor economic incentives for recycling of resourceโ€“intensive consumer

goods?โ€

Improving response rate -How can we reduce the rate of refusals in telephone surveys? Most people who answer at all listen to the interviewerโ€™s introductory remarks and then decide whether to continue. One study made telephone calls to randomly selected households to ask opinions about the next election. In some calls, the interviewer gave her name; in others, she identified the university she was representing; and in still others, she identified both herself and the university. For each type of call, the interviewer either did or did not offer to send a copy of the final survey results to the person interviewed.

a. List the factors in this experiment and state how many levels each factor has.

b. If the researchers used every possible combination to form the treatments, how many treatments were included in the experiment?

c. List two of the treatments.

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