Consider the Following to Answer the Question(s) Below

question 27

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.
-Is there a significant relationship between sales performance (units sold per month) and college GPA (use α = 0.05)? Give the appropriate test statistic, associated P-value, and conclusion.

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Definitions:

Transverse Processes

Lateral projections from the vertebrae, where muscles and ligaments attach.

Cervical Vertebrae

The vertebrae located in the neck region, forming the upper part of the spinal column.

Intervertebral Discs

The fibrocartilaginous pads situated between the vertebrae of the spine, providing cushioning and facilitating movement.

Fibrocartilage

A type of tough and inflexible cartilage that contains fibrous bundles of collagen, such as that found in the intervertebral disks and at the insertions of ligaments and tendons.