A Coffee Shop Franchise Owner Is Looking at Two Possible

question 122

Multiple Choice

A coffee shop franchise owner is looking at two possible locations for a new shop.To help make a decision he 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 347 and a sample standard deviation of 85.Assume the two populations variances are not known but are equal.(pooled variance = 22.4) Testing the claim that both sites have the same mean number of pedestrians at = .01,what do you conclude?

• A)There is a difference between the two sites
• B)There is no difference between the two sites

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Definitions:

Organ of Hearing

The ear, responsible for detecting and processing sound waves.

Auditory Tube

A tube connecting the middle ear to the nasopharynx, helping equalize pressure on either side of the eardrum.

Pharynx

The pharynx is a muscular tube that connects the mouth and nasal passages with the esophagus and larynx, serving both respiratory and digestive functions.

Ossicles

Small bones, especially those in the middle ear that include the malleus, incus, and stapes, which transmit sound vibrations.