Exhibit 14-5

question 86

Multiple Choice

Exhibit 14-5.An marketing analyst wants to examine the relationship between sales (in $1,000s) and advertising (in $100s) for firms in the food and beverage industry and collects monthly data for 25 firms.He estimates the model .The following table below shows a portion of the regression results. Refer to Exhibit 14-5.Calculate the coefficient of determination.

• A)0.1348
• B)0.1558
• C)0.8442
• D)0.8652

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Definitions:

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how much the values of a dataset differ from the mean of the dataset.

IQR

The interquartile range, a measure of statistical dispersion representing the difference between the 25th and 75th percentiles.

Skewed

A description of data that is not symmetrically distributed, often leaning towards one direction.

Corn Snakes

A species of rat snake, Pantherophis guttatus, known for its relatively docile temper and being harmless to humans, often kept as pets.