A Key Metric in the Cell Phone Industry Is Average

question 110

Multiple Choice

A key metric in the cell phone industry is average revenue per user (ARPU) which represents the average dollar amount that a customer spends per store visit. Recently, AT&T reported their ARPU was $67.81. Suppose the standard deviation for this population is $18.45. What is the probability that the ARPU will be between $62 and $66 from a random sample of 35 customers?

• A)0.3553
• B)0.4470
• C)0.5619
• D)0.2496

---

Definitions:

Physically Ready

A state of having achieved the necessary physical development and strength to engage in a particular activity or task.

Participate

To take part or become involved in a particular activity, event, or situation.

Enuresis

Repeated urination in clothing or in bed.

Bladder

A hollow muscular organ that stores urine excreted by the kidneys before it is discharged from the body.