Statistics - Regression and Linear Equations
Not what you're looking for?
1. Consider the following annual sales data for 1996-2003, use the linear regression method and determine the estimated sales equation.
Year Sales
1996 2
1997 4
1998 10
1999 8
2000 14
2001 18
2002 17
2003 20
2. Solve the following system of simultaneous equations.
6x1 + 4x2 = 40
2x1 + 3x2 = 20
Please see attached file for proper formatting.
Purchase this Solution
Solution Summary
The step-by-step solution explained how to use the linear regression method to determine the estimated sales equation.
Solution Preview
1. The regression equation for sales is y = 2.630952x + 2.416667.
(Please see attached file for complete solution.)
2. Multiply the second equation ...
Purchase this Solution
Free BrainMass Quizzes
Solving quadratic inequalities
This quiz test you on how well you are familiar with solving quadratic inequalities.
Geometry - Real Life Application Problems
Understanding of how geometry applies to in real-world contexts
Multiplying Complex Numbers
This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.
Exponential Expressions
In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.
Graphs and Functions
This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.