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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.
-The confidence interval and prediction interval for the number of units sold per month when GPA = 3.00 are shown below. Interpret both intervals in this context.
I Data
Informant data obtained from reports by others who know the person well, typically used in personality assessment to provide an external perspective on someone's behavior and traits.
B Data
Behavior-based data, observed actions or reactions of individuals in natural or controlled settings in psychological research.
L Data
Life record data in psychology that pertain to the observable facts about a person's life.
Reliable
The level of consistency and dependability in the results provided by an evaluative device over time.
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