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

Monitoring the production of soft-drink cans. The Wakefield plant of Coca-Cola and Schweppes Beverages Limited (CCSB) can produce 4,000 cans of soft drink per minute. The automated process consists of measuring and dispensing the raw ingredients into storage vessels to create the syrup and then injecting the syrup, along with carbon dioxide, into the beverage cans. In order to monitor the sub process that adds carbon dioxide to the cans, five filled cans are pulled off the line every 15 minutes, and the amount of carbon dioxide in each of these five cans is measured to determine whether the amounts are within prescribed limits.

a. Describe the process studied.

b. Describe the variable of interest.

c. Describe the sample.

d. Describe the inference of interest.

e. Brix is a unit for measuring sugar concentration. If a technician is assigned the task of estimating the average brix level of all 240,000 cans of beverage stored in a warehouse near Wakefield, will the technician be examining a process or a population? Explain.

Short Answer

Expert verified
  1. Scrutinizing the production process wherein 5 cans are pulled off every 15 minutes to check the level of carbon dioxide.
  2. To check whether the amounts of carbon dioxide are within the prescribed limit or not.
  3. The set of all the 5 cans that are pulled off the line every 15 minutes.
  4. The number of all cans that are pulled has the correct amount of carbon dioxide that is within the prescribed limits.
  5. Population

Step by step solution

01

Identifying the process

The process that the researcher is interested in is calculating and dispersing the raw ingredients into the storage vessels to make the syrup. Along with the syrup, carbon dioxide is injected.Five filled cans are drawn off every 15 minutes to inspect if the amount of carbon dioxide is within the admissible unit.

02

Determining the variable of interest

The variable here is to check the acceptable unit of carbon dioxide. The main aim of the study is to monitor the variable; here, it is the amount of carbon dioxide in the cans.

03

Defining the sample

The sample that the researcher is interested in isthe batch of all the 5 cans that are pulled out from the line every 15 minutes so as to check whether the amount of carbon dioxide is within the admissible unit.

04

Providing the inference

The inference is to monitor if theamount of carbon dioxide injected in the can is appropriate and within the prescribed limits or not. The purpose of inference is to identify the features of the data.

05

Examining whether the process is sample or population

The technician is measuring the sugar concentration in 240,000 cans; this is apopulationsince he or she will be analyzing all the cans and not a subset.

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

Parking at a university. Parking at a large university has become a big problem. The university's administrators want to determine the average parking time of its students. An administrator inconspicuously followed 250 students and carefully recorded the time it took them to find a parking spot.

a. What is the population of interest to the university administration?

b. Identify the sample of interest to the university administration.

c. What is the experimental unit of interest to the university administration?

d. What is the variable of interest to the university administration?

Explain the difference between quantitative and qualitative data?

Suppose that a production batch contains 1,000 units and you have to select 10 units for quality assurance. Use a random number generator to select a simple random sample of n = 10 from the production batch.

Treasury deficit prior to the Civil War. In Civil War History (June 2009), historian Jane Flaherty researched the condition of the U.S. Treasury on the eve of the Civil War in 1861. Between 1854 and 1857 (under President Franklin Pierce), the annual surplus/deficit was +18.8, +6.7, +5.3, and +1.3 million dollars, respectively. In contrast, between 1858 and 1861 (under President James Buchanan), the annual surplus/deficit was -27.3, -16.2, -7.2, and -25.2 million dollars, respectively. Flaherty used these data to aid in portraying the exhausted condition of the U.S. Treasury when Abraham Lincoln took office in 1861. Does this study represent a descriptive or inferential statistical study? Explain.

Zillow.com estimates of home values. Zillow.com is a real estate Web site that provides free estimates of the market value of homes. A trio of University of Texas at San Antonio professors compared Zillow estimates to actual sale prices of homes and published their results in The Appraisal Journal (Winter 2010). The analysis was based on data collected for 2,045 single-family residential properties in Arlington, Texas, that sold during the last 6 months of 2006. Sale price and Zillow estimated value (in dollars) were measured for each property. Zillow claims that this market has one of its highest-accuracy ratings. However, the research revealed that Zillow overestimated the market value by more than 10% for nearly half of the properties.

a. What is the experimental unit for this study?

b. Describe the variables measured in the study. Do these variables produce quantitative or qualitative data?

c. Give a scenario where the 2,045 properties represent a population.

d. If the 2,045 properties represent a representative sample from a population, describe the population.

e. Suppose the relevant population is all single-family residential properties in the United States. Do you believe the 2,045 properties are representative of this population? Explain.

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