A Regression Analysis Between Height Y (In Cm) and Age

question 47

Short Answer

A regression analysis between height y (in cm) and age x (in years) of 2 to 10 years old boys yielded the least squares line y-hat = 87 + 6.5x. This implies that by each additional year height is expected to: $\begin{array}{|l|l|}\hline A&\text {increase by \( 93.5 \mathrm{~cm} \). }\\\hline B&\text {increase by \( 6.5 \mathrm{~cm} \). }\\\hline C&\text {increase by \( 87 \mathrm{~cm} \). }\\\hline D&\text {decrease by \( 6.5 \mathrm{~cm} \). }\\\hline \end{array}$

---

Definitions:

Commissions

Earnings based on a percentage of the sales made by an employee or agent, as a form of incentive pay.

Pay Equity

The principle of offering equal pay for work of equal value, aiming to eliminate wage discrimination based on gender or other unrelated factors.

Equal Pay

The principle of compensating employees equally for work of equal value regardless of gender, race, or other non-performance-related factors.

Skill-Based Pay

A compensation system that pays employees based on the skills they have acquired, rather than their job title or position alone.