Topic: Consumer

Methods: Regression, Multivariate Regression, Time Series,
Topics: Economics, Consumer,
Datafile Name: Agricultural Economics Studies
Abstract:

These data provide the student with opportunity to develop models for beef prices, beef consumption, pork prices, and pork consumption that take account of consumption and price of a substitute product , a demand shifter (income), and other factors. Frederick V Waugh was Director of the Division ...

Methods: Diagnostics, Dummy Variable, Interaction, Regression,
Topics: Economics, Government, Consumer,
Datafile Name: Home Prices
Abstract:

From data maintained by the multiple listing agency in Albuquerque, the file contains prices of home resales along with descriptive data on the home, including square feet, age, number of certain features, custom built or not, and corner location or not. Another dummy variable is whether the home...

Methods: Correlation, Dummy Variable, Outlier, Regression, Scatterplot,
Topics: Consumer, Health,
Datafile Name: Alcohol and Tobacco
Abstract:

Data from a British government survey of household spending may be used to examine the relationship between household spending on tobacco products and alcholic beverages. A scatterplot of spending on alcohol vs. spending on tobacco in the 11 regions of Great Britain shows an overall positive line...

Methods: Boxplot, ANOVA,
Topics: Automotive, Consumer, Energy, Engineering, Environment,
Datafile Name: Auto Pollution Filter Noise
Abstract:

The data are from a statement by Texaco, Inc. to the Air and Water Pollution Subcommittee of the Senate Public Works Committee on June 26, 1973. Mr. John McKinley, President of Texaco, cited the Octel filter, developed by Associated Octel Company as effective in reducing pollution. However, quest...

Methods: Regression, Interaction,
Topics: Food, Consumer,
Datafile Name: Beef Council Check-off
Abstract:

Average size of farm (SIZE) and percent of farms with sales of $100,000 or more dominate the regression of percent of farmers voting yes for the American Beef Council check-off (YES) on characteristics of farms and operators by counties in Montana. In fact, there is a strong interaction of these ...

Methods: Cluster Analysis, Three Dimensional Plot,
Topics: Automotive, Consumer, Engineering,
Datafile Name: Cars
Abstract:

Consumer Reports measured the gas mileage of 38 1978-79 model cars. Other measurements about each car, such as weight and drive ratio, were reported by the manufacturer. A cluster analysis of MPG, Weight, and Drive Ratio for cars reveals three main clusters, which we might identify ...

Methods: Correlation, Diagnostics, Paired T-Test, Regression, Transformation,
Topics: Consumer, Economics,
Datafile Name: Fish Prices
Abstract:

The price of fish varies by species and time. The average price recieved by fishermen and vessel owners for several species of fish increased from 41 cents per pound in 1970 to $1.10 per pound in 1980. A paired t-test shows that this increase is highly significant.

There is a strong cor...

Methods: Regression, Interaction, Dummy Variable, ANOVA,
Topics: Consumer, Food,
Datafile Name: Taste Test Scores
Abstract:

Two-way analysis of variance with two levels of each classification can be easily handled by regression analysis with dummy (0,1) variables for the two levels. The example involves food taste scores in an experiment in which a coarse and fine screen for texture and a high and low liquid level wer...

Methods: Lurking Variable, Outlier, Regression,
Topics: Consumer, Engineering, Automotive,
Datafile Name: Cars
Abstract:

In a regression to predict fuel consumption (measured in Gallons/100 miles -- see the related story "Measuring Fuel Efficiency") from the weight and drive ratio of cars, the Buick Estate Wagon shows up as an outlier. Remarkably enough, even though the Buick Estate Wagon has high fuel co...

Methods: Summary Statistics,
Topics: Consumer,
Datafile Name: Shoppers
Abstract:

A marketing consultant observed 50 consecutive shoppers at a grocery store, and recorded how much money each shopper spent in the store. Descriptive statistics such as mean, median, standard deviation, and interquartile range, as well as graphical methods such as boxplots or dotplots, may be used...

Methods: Regression, Time Series,
Topics: Consumer,
Datafile Name: Ice Cream
Abstract:

Ice cream consumption was measured over 30 four-week periods from March 18, 1951 to July 11, 1953. The purpose of the study was to determine if ice cream consumption depends on the variables price, income, or temperature. The variables Lag-temp and Year have been added to the original data.

...
Methods: ANOVA,
Topics: Consumer, Psychology,
Datafile Name: Magazine Ads Readability
Abstract:

Six magazine advertisements were randomly selected from each of three magazines selected from magazines grouped into three classes according to educational level of their readers. For each advertisement selected the number of words of advertising copy, the number of sentences in the advertising c...

Methods: Residuals, Transformation,
Topics: Consumer, Engineering,
Datafile Name: Cars
Abstract:

In the United States fuel efficiency for cars is typically measured in miles driven per gallon of fuel consumed (miles per gallon, MPG). This is not true in some other parts of the world where fuel efficiency is measured as the amount of fuel consumed while travelled a fixed distance (e.g. Gallon...

Methods: Chi Square Test, Transformation, Confidence Interval,
Topics: Consumer, Economics,
Datafile Name: Montanac Outlook Poll
Abstract:

The data contain the outcomes for two items in the Montana Economic Outlook Poll conducted in May 1992, with accompanying demographics for 209 out of 418 poll respondents. The items are whether the respondent feels his/her financial status is worse, the same, or better than a year ago, and whethe...

Methods: Regression, Dummy Variable, Interaction,
Topics: Consumer, Engineering,
Datafile Name: Nambeware Polishing Times
Abstract:

The average polishing times for 59 products are related in general to the sizes of the products as indicated by product diameter (or equivalent). However, dif- ferent types of products have special problems in polishing. For example, cas- seroles are deeper than ordinary plates and on that accoun...

Methods: Regression, Transformation, Polynomial Regression,
Topics: Automotive, Engineering, Consumer,
Datafile Name: Passenger Car Mileage
Abstract:

Variation in gasoline mileage among makes and models of automobiles is influenced substantially by the weight and horsepower of the vehicles. When miles per gallon and horsepower are transformed to logarithms, the linearity of the regression is improved. A negative second order term is required t...

Methods: Regression, Dummy Variable, Interaction, Transformation,
Topics: Consumer, Engineering,
Datafile Name: Nambeware Polishing Times
Abstract:

The relation between polishing time and product diameters as well as type of product (casserole, other) is one which is useful to the company for estimating the polishing time for new products which are designed or suggested for design and manufacture. A necessary regression assumption is that th...

Methods: Regression, Time Series,
Topics: Economics, Consumer,
Datafile Name: Predicting Appliance Sales
Abstract:

The file gives annual unit factory shipments of dishwashers, disposals, refrigerators, and washing machines in the United States from 1960 through 1985 together with two potential predictor series, durable goods expenditures and private residential investment. The data for each series in 1986 wer...

Methods: Regression, Residuals, Time Series,
Topics: Economics, Consumer,
Datafile Name: Predicting Retail Sales
Abstract: The datafile contains 11 years of quarterly sales for four kinds of retail establish- ments, along with non-agricultural employment and wage and salary disbursements The task is to develop a model for predicting sales using leading values of employ- ment or wage and salary disbursements, seasonal in...
Methods: Dummy Variable, Regression, Residuals, Time Series,
Topics: Consumer, Economics,
Datafile Name: Quarterly Appliance Sales
Abstract:

The data presented in the datafile Quarterly Appliance Sales are suitable for developing models for predicting the four kinds of appliance sales. Three kinds of models can be developed. These are:

1. A model with appropriate quarterly indicators, a time variable, coincident and lagged v...

Methods: Outlier, Boxplot, T-test, Summary Statistics,
Topics: Consumer, Economics, Finance,
Datafile Name: Refusals in Mortgage Lending
Abstract:

Acorn is the acronym for Association of Community Organizations for Reform Now. These data were presented by Acorn to a Joint Congressional Hearing on discri- mination in lending. Acorn concluded that "banks generally have exhibited a per- vasive pattern of lending practices that have the ef...

Methods: Diagnostics, Regression, Outlier, Transformation,
Topics: Economics, Government, Consumer,
Datafile Name: Home Prices
Abstract:

How taxes change in response to changing market value of homes is a question of concern to citizens as a policy matter as well as a personal financial concern. The tax data included in the datafile Home Prices permit an examination of this question for used homes in Albuquerque in 1993. The linea...

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