Write the Word or Phrase That Best Completes Each Statement

question 123

Short Answer

Write the word or phrase that best completes each statement or answers the question.
-A company keeps extensive records on its new salespeople on the premise that sales should increase with experience. A random sample of seven new salespeople produced the data on experience and sales shown in the table.
$\begin{array}{c|c}\text { Months on Job } & \begin{array}{c}\text { Monthly Sales } \\\text { y (\$ thousands) }\end{array} \\\hline 2 & 2.4 \\4 & 7.0 \\8 & 11.3 \\12 & 15.0 \\1 & 0.8 \\5 & 3.7 \\9 & 12.0\end{array}$

Summary statistics yield $\mathrm { SS } _ { \mathrm { xx } } = 94.8571 , \mathrm { SS } _ { \mathrm { xy } } = 124.7571 , \mathrm { SS } _ { \mathrm { yy } } = 176.5171 , \overline { \mathrm { x } } = 5.8571$ , and $\overline { \mathrm { y } } = 7.4571$ . Find and interpret the coefficient of determination.

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Definitions:

Tairona Pendants

Artifacts made by the Tairona civilization, indigenous to present-day Colombia, known for their intricate goldsmithing and symbolic designs.

Hammered Gold

A technique in metalwork where gold is shaped and textured through the process of hammering to create objects or decorative elements.

Amulets and Talismans

Objects believed to possess magical or sacral properties, providing protection or bringing luck to the wearer or holder.

Adena

A prehistoric Native American culture that existed in the Ohio Valley area (United States) known for its burial mounds and earthworks.