In Order to Determine Whether or Not the Number of Automobiles

question 6

Essay

In order to determine whether or not the number of automobiles sold per day (Y) is related to price (X₁ in $1,000), and the number of advertising spots (X₂), data were gathered for 7 days. Part of the regression results is shown below.
a. Determine the least squares regression function relating Y to X1 and X2.
b. If the company charges $20,000 for each car and uses 10 advertising spots, how many cars would you expect them to sell in a day?
c. At $\alpha$ = 0.05, test to determine if the fitted equation developed in Part a represents a significant relationship between the independent variables and the dependent variable.d. At 95% confidence, test to see if price is a significant variable.e. At 95% confidence, test to see if the number of advertising spots is a significant variable.f. Determine the multiple coefficient of determination.

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Definitions:

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Practical assistance provided to someone, often in the form of tangible help or services, such as financial aid, babysitting, or providing transport.

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A resolution or compromise of a disagreement achieved through the mutual concessions of all involved parties.

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Society's interpretation of appropriate actions, roles, behaviors, and traits for men and women, formed through social construction.

Men's Speech

The distinct linguistic styles, patterns, and behaviors associated with male communication, often studied in sociolinguistics and gender studies.