You Are Interested in Determining the Average Cost of a 3-Minute

question 118

Multiple Choice

You are interested in determining the average cost of a 3-minute telephone call to locations within the continental U.S.What sample size must you take to be 96% confident that the results will be within $.75 of the true mean cost per call? From the phone company,you have gotten an estimate of $\text { ? }$
= 7.71.

• A) 185
• B) 445
• C) 406
• D) 574
• E) 22

---

Definitions:

Atmospherics

Sensory-based stimuli within a retailer’s environment—the sights, sounds, smells, and other attributes—that project an image and draw customers to the store.

Gamification

The application of typical elements of game playing (e.g., point scoring, competition with others, rules of play) to other areas of activity, typically as an online marketing technique to encourage engagement with a product or service.

Catalog Marketing

A retail sales technique used to group many items together in a printed piece or an online store.

Retailers

Businesses that sell products or services directly to consumers, usually in small quantities.