Use the Following for Questions
a Sales Manager Was $= - 0.48 + 7.42$

question 1

Essay

Use the following for questions
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 college GPA and the number of units sold last month recorded. Below are the scatterplot, regression results, and residual plots for these data. The regression equation is
Units Sold $= - 0.48 + 7.42$ GPA
$\begin{array} { l r r r r } \text { Predictor } & \text { Coef } & \text { SE Coef } & \text { T } & \text { P } \\ \text { Constant } & - 0.484 & 3.256 & - 0.15 & 0.884 \\ \text { GPA } & 7.423 & 1.044 & 7.11 & 0.000 \end{array}$
$\mathrm { S } = 1.57429 \quad \mathrm { R } - \mathrm { Sq } = 78.3 \% \mathrm { \circ } \quad \mathrm { R } - \mathrm { Sq } ( \mathrm { adj } ) = 76.8 \%$
Analysis of Variance
$\begin{array} { l r r r r r } \text { Source } & \text { DF } & \text { SS } & \text { MS } & \text { F } & \text { P } \\ \text { Regression } & 1 & 125.30 & 125.30 & 50.56 & 0.000 \\ \text { Residual Error } & 14 & 34.70 & 2.48 & & \\ \text { Total } & 15 & 160.00 & & & \end{array}$ Answer:
-What is the independent variable in this regression? Write the null and alternative
hypothesis to test the slope of this variable.

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Definitions:

Equivalent Units

Equivalent units are a concept in process costing that represents the amount of work done on a product in terms of fully completed units, used to allocate costs in manufacturing.

Production Cost

Production cost is the total expense incurred in the process of creating goods or services, including raw materials, labor, and overhead costs.

Conversion Costs

Refers to the combined costs of direct labor and manufacturing overheads that are incurred to convert raw materials into finished goods.

Manufacturing Costs

Costs that are directly associated with the manufacturing of products, including raw materials, workforce expenses, and indirect costs.