Consider the Following to Answer the Question(s) Below

question 31

Essay

Consider the following to answer the question(s) below:
A sales manager was interested in determining if there is a relationship between college GPA and sales performance among salespeople hired within the last year. A sample of recently hired salespeople was selected and the number of units each sold last month was recorded. Relevant data appear in the table below.
Below are the scatterplot, regression results, and residual plots for these data.
-Write the null and alternative hypothesis.

---

Definitions:

Critical Incidents Method

A performance appraisal method that focuses on the most significant events (or incidents) involving the employee during the review period.

Graphic Ratings Method

A performance evaluation technique where employees are rated on predefined categories using a visual scale or graph.

Essay Method

A trait approach to performance rating that requires the rater to compose a statement describing employee behaviour.

Critical Incidents Method

A performance appraisal method focusing on the most significant actions of an employee, either positively or negatively impacting their job effectiveness.