Consider the Sample Regression Function
Y_i = $\hat { \beta }$

question 51

Essay

Consider the sample regression function
Y_i = $\hat { \beta }$ ₀ + $\hat { \beta }$ ₁X_i + $\bar u$ _i.
First, take averages on both sides of the equation. Second, subtract the resulting equation from the above equation to write the sample regression function in deviations from means. (For simplicity, you may want to use small letters to indicate deviations from the mean, i.e., z_i = Z_i - $\bar { Z }$ )Finally, illustrate in a two-dimensional diagram with SSR on the vertical axis and the regression slope on the horizontal axis how you could find the least squares estimator for the slope by varying its values through trial and error.

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Definitions:

Group Dynamics

The psychological processes involving interactions, behaviors, attitudes, and roles that occur within a group setting.

Synergy

The creation of a whole greater than the sum of its individual parts.

Cohesiveness

The degree to which members are attracted to and motivated to remain part of a team.

Quality Circle

A group of employees who periodically meet to discuss ways of improving work quality.