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The following is part of the results of a regression analysis involving sales (y in millions of dollars), advertising expenditures (x1 in thousands of dollars), and number of salespeople (x2) for a corporation.The regression was performed on a sample of 10 observations.
a.
If the company uses $40,000 in advertisement and has 30 salespeople, what are the expected sales? Give your answer in dollars.
b.
At α = .05, test for the significance of the coefficient of advertising.
c.
At α = .05, test for the significance of the coefficient of the number of salespeople.
Cerebral Asymmetry
Refers to the morphological or functional differences between the two hemispheres of the brain, often influencing cognitive abilities and behaviors.
Brain Regions
Specific areas within the brain that are responsible for different functions, such as emotional regulation, sensory processing, and motor control.
Stimuli
External or internal changes that affect the senses and can elicit responses from an organism.
Cerebral Asymmetry
The anatomical, functional, and physiological differences between the two hemispheres of the brain.
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