A Market Analyst Is Developing a Regression Model to Predict

question 49

Multiple Choice

A market analyst is developing a regression model to predict monthly household expenditures on groceries as a function of family size,household income,and household neighbourhood (urban,suburban,and rural) .The response variable in this model is ___.

• A)family size
• B)expenditures on groceries
• C)household income
• D)suburban
• E)household neighbourhood

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Definitions:

Pupil

The opening in the center of the iris of the eye, which regulates the amount of light reaching the retina.

Cornea

The clear, dome-shaped front surface of the eye that acts as a window to allow light to enter the eye.

Just Noticeable Change

The minimal difference in stimulation that a person can detect 50% of the time, also known as the difference threshold.

Weber's Law

A principle stating that the perceived change in a stimulus is proportional to the original intensity of the stimulus, affecting how differences in sensory stimuli are detected.