Regional Manager Sue Collins Would Like to Know If the Mean

question 152

Essay

Regional Manager Sue Collins would like to know if the mean number of telephone calls made per 8-hour shift is the same for the telemarketers at her three call centers (Austin, Las Vegas, and Albuquerque). A simple random sample of 6 telemarketers from each of the three call centers was taken and the number of telephone calls made in eight hours by each observed employee is shown below.
Using a = .10, test for any significant difference in the mean number of telephone calls made at the three call centers.

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Definitions:

Fibularis Brevis

A muscle of the lower leg that contributes to the eversion and plantarflexion of the foot.

Extensor Hallucis Longus

A leg muscle that extends the big toe and aids in foot dorsiflexion and inversion.

Tibialis Anterior

A muscle in the lower leg that contributes to dorsiflexion and inversion of the foot.

Brachioradialis

A muscle of the forearm that flexes the forearm at the elbow, particularly when the forearm is in midpronation/supination.