Is there a relationship between the raises administrators at ...

[michelleunicorn]

Is there a relationship between the raises administrators at County University receive and their performance on the job?

A faculty group wants to determine whether job rating (x) is a useful linear predictor of raise (y). Consequently, the group considered the linear regression model

E(y) = β₀ + β₁x.

The faculty group obtained the following prediction equation:

= 14,000 - 2,000x

Which of the following statements about the model E(y) = β₀ + β₁x is correct?
◦ The model hypothesizes that knowing an administrator's rating (x) will determine exactly the administrator's raise (y).
◦ The model hypothesizes a line of means; as rating (x) increases, the mean raise E(y) moves up or down along a straight line.
◦ The model hypothesizes that the raises for the administrators fall in a perfect straight line.
◦ The model hypothesizes that, on average, administrators make more money than professors.

[blazinlyss]

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[michelleunicorn]

Excellent

[juliaf]

Gracias!