Aresearcher hired by a department store wants to examine whether manipulating the room temperature to be hotter as opposed to cooler affects sales of air conditioners. the best method for answering this question would be

experimental

Explanation:

According to my research on different research methodology, I can say that based on the information provided within the question the best method for answering this question would be experimental. This is because until she conducts an experiment by testing both the hot and cold effects she will not know which one affects sales more, or even if they affect sales at all.

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answer; cultural trait;