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}$

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Definitions:

Maya Indian Villages

Historical settlements of the Maya civilization, characterized by their advanced architectural, agricultural, and astronomical systems.

Prestige Economy

The creation of a surplus for the express purpose of displaying wealth and giving it away to raise one's status.

Leveling Mechanism

A cultural obligation compelling prosperous members of a community to give away goods, host public feasts, provide free service, or otherwise demonstrate generosity so that no one permanently accumulates significantly more wealth than anyone else.

Task Specialization

A process in which different individuals or groups within a community or organization focus on specific tasks or roles, contributing to efficiency and expertise development.