Experts in a Communications Company Believe That Cell Phone Usage

question 81

Multiple Choice

Experts in a communications company believe that cell phone usage on weekends is determined by the age of the customer and the number of months the customer has the cell phone account. Which of the following technique could be used to analyze the data?

• A) Regression analysis
• B) Unsupervised data-mining
• C) Neural networks
• D) Cluster analysis
• E) Market-based analysis

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Definitions:

Statistical Significance

A measure that indicates whether the results of a study are likely not due to chance.

Scatterplot

A type of graph used in statistics to display values for typically two variables for a set of data, where each dot represents one observation.

Negative Correlation

A correlation between two variables where the growth of one inversely affects the decline of the other.

Statistical Significance

A measure indicating that the likelihood of the observed results occurring by chance is very low, typically used in hypothesis testing to validate study findings.