A Coffee Shop Franchise Owner Is Looking at Two Possible

question 168

Essay

A coffee shop franchise owner is looking at two possible locations for a new shop. To help make a decision the owner looks at the number of pedestrians that go by each of the two locations in one-hour segments. At location A, counts are taken for 35 one-hour units and with a mean number of pedestrians of 421 and a sample standard deviation of 122. At the second location (B), counts are taken for 50 one hour units with a mean number of pedestrians of 247 and a sample standard deviation of 85. Assume the two populations variances are not known but are equal, and that the number of pedestrians is approximately normal.
-Calculate a 95% confidence interval for the difference in pedestrian traffic at the two locations.

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Definitions:

Forewarning Effect

The psychological phenomenon where being warned about a potential influence or bias can affect a person's response to subsequent information or persuasion attempts.

Inoculation Effect

A psychological technique that aims to make individuals resistant to attempts to change their attitudes by first exposing them to small arguments against their position.

Coercive Techniques

Methods used to compel or force someone to act in a certain way through pressure or threats.

Confessions

The act of admitting involvement in a crime or wrongdoing, often discussed in legal and psychological contexts.