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 Excel output 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 = 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 = 0.05, test to see if 1 is significantly different from zero.
e.Determine the multiple coefficient of determination.
Definitions:
Traditional Sex Roles
Societal expectations and norms dictating appropriate behaviors, duties, and responsibilities based on one's gender, often reinforcing gender stereotypes.
Social Justice
The concept of fair and equitable treatment of all individuals in society, ensuring equal opportunities, rights, and protections.
Basic Rights
Fundamental rights considered inherent to all individuals, often including the right to life, liberty, free speech, and privacy, as recognized by national and international laws and declarations.
Prejudiced Discriminator
An individual who not only holds prejudicial views towards others based on race, gender, or other characteristics but also acts upon these biases in discriminatory ways.
Q1: Refer to Exhibit 20-5. The expected value
Q8: Stratified random sampling is a method of
Q9: A nonparametric method for determining the differences
Q17: A group of observations measured at successive
Q26: From a population consisting of 8,000 elements,
Q32: Refer to Exhibit 12-3. The test statistic
Q64: The numerical value of the coefficient of
Q73: One measure of the accuracy of a
Q90: Below you are given a partial
Q113: The final examination grades of random