If Then the Least Squares Estimate of the Slope Coefficient $\beta _ { 1 }$

question 30

Multiple Choice

If $\sum \left( x _ { i} - \bar { x } \right) \left( y _ { i } - \bar { y } \right) = 128 \text { and } \sum \left( x _ { i } - \bar { x } \right) ^ { 2 } = 80$ then the least squares estimate of the slope coefficient $\beta _ { 1 }$ of the true regression line $y = \beta _ { 0 } + \beta _ { 1 } x$ is

• A) 11.314
• B) 8.944
• C) 1.600
• D) 0.625
• E) cannot be determined from the given information

---

Definitions:

Exaggerate Earnings

The act of overstating income or profits, often to mislead stakeholders or inflate a company's value.

Ethical Decision-Making Metric

A tool or standard used to guide and evaluate decisions based on moral principles and ethical values.

Strategic Marketing Planning Process

A systematic approach for developing marketing strategies that align with the overarching goals of an organization, involving situation analysis, goal setting, and tactical planning.

Ladder Safety

Ladder Safety involves practices and precautions to prevent accidents and ensure safety when using ladders, including proper setup, positioning, and usage.