The Sample Data Below Are the Typing Speeds (In Words

question 171

Essay

The sample data below are the typing speeds (in words per minute) and reading speeds (in words per minute)
of nine randomly selected secretaries. Here, x denotes typing speed, and y denotes reading speed. $$\begin{array} { l l l l l l l l l l | } \hline x & 60 & 56 & 52 & 63 & 70 & 58 & 44 & 79 & 62 \\\hline \mathrm { y } & 370 & 551 & 528 & 348 & 645 & 454 & 503 & 618 & 500 \\\hline\end{array}$$ The regression equation $$\hat { \mathrm { y } } = 290.2 + 3.502 \mathrm { x }$$ was obtained. Construct a residual plot for the data.

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Definitions:

Supply of Cars

The total number of cars that manufacturers are willing and able to sell at a given price level in a given period.

Time Interval

A specific duration of time between two points or events.

Input Prices

The cost of resources used in the production process.

Market Period

A short time frame in which the supply of a commodity is fixed, typically because the production process cannot be adjusted quickly.