A Major Cell Phone Service Provider Has Determined That the Number

question 72

Multiple Choice

A major cell phone service provider has determined that the number of minutes that its customers use their phone per month is normally distributed with a mean equal to 445.5 minutes with a standard deviation equal to 177.8 minutes. The company is thinking of changing its fee structure so that anyone who uses the phone less than 250 minutes during a given month will pay a reduced monthly fee. Based on the available information, what percentage of current customers would be eligible for the reduced fee?

• A) About 36.4 percent
• B) Approximately 52 percent
• C) About 86.6 percent
• D) About 13.6 percent