Sally Has Been Running the Following Number of Ads in the Local

question 102

Short Answer

Sally has been running the following number of ads in the local newspaper to help attract customers into her store. She has also been keeping track of customers who have come into the store as a result of the ads, as well as the amount of money they spend.
This is the data from the last 4 weeks:
$$\begin{array} { c c } \text { Number of ads } & \text { Increased sales } \\\hline 16 & 330 \\12 & 270 \\18 & 380 \\14 & 300 \\\hline\end{array}$$
-If Sally runs 15 ads, how much will sales increase?

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Definitions:

External Validity

The extent to which the findings of a study can be generalized to other settings, populations, or time periods.

Laboratory Experiments

Experiments conducted in a controlled environment where variables can be manipulated and measured precisely.

Informed Consent

In research ethics, the principle that participants in an experiment be informed in advance of all aspects of the research that might influence their decision to participate.

Non-English Speakers

Individuals whose primary language is not English, impacting their ability to communicate, understand, and engage effectively in English-dominant contexts.