Applicants for a Particular Job, Which Involves Extensive Travel in Spanish

question 84

Essay

Applicants for a particular job, which involves extensive travel in Spanish speaking countries, must take a proficiency test in Spanish. The sample data below were obtained in a study of the relationship between the numbers of years applicants have studied Spanish (x) and their score on the test (y).
$$\begin{array}{l}\begin{array} { l c c c c c c c c c c } \hline \mathrm { x } & 3 & 4 & 4 & 2 & 5 & 3 & 4 & 5 & 3 & 2 \\\hline \mathrm { y } & 57 & 78 & 72 & 58 & 89 & 63 & 73 & 84 & 75 & 48 \\\hline\end{array}\\\text { The regression equation } \hat { y } = 31.55 + 10.90 x \text { was obtained. Construct a residual plot for the }\end{array}$$

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Definitions:

Asset Utilization

Measures how efficiently a company uses its assets to generate revenue.

Working Capital

The difference between a company's current assets and current liabilities, indicating the liquidity and operational efficiency of the business.

Total Assets

The sum of all current and long-term assets owned by a company, as represented on its balance sheet, indicating the resources it has at its disposal.

Inventory Turnover Ratio

Cost of goods sold as a multiple of average inventory.