FORESTRY
AGRICULTURAL STATISTICS AND ECONOMICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
A set of data describes the relationship between the size of annual salary raises and theperformance ratings for employees of a certain company. The least squares regressionequation isy-hat = 1400 + 2000x where y is the raise amount (in dollars) and x is theperformance rating. Which of the following statements must be true?
|
|
For each one-point increase in performance rating, the raise will increase on average by$1400.
|
|
|
The actual relationship between salary raises and performance rating is linear.
|
|
|
The residuals for half the observations in the dataset will be positive.
|
|
|
The correlation between salary raise and performance rating is negative.
|
|
|
If the mean performance rating is 1.2, then the mean raise is $3800.
|
Explanation:
There is 1 question to complete.