BUSINESS: Satellite Radio Satellite radio has become increasingly popular in recent...

BUSINESS: Satellite Radio Satellite radio has become increasingly popular in recent years, with the total number of subscribers shown in the following graph.

a. Number the data bars with x-values 1–5 (so that x stands for years since 2005), use power regression to fit a power curve to the data, and state the regression formula. [Hint: See Example 7.]

b. Use the regression formula to predict satellite radio subscribers in the year 2015. [Hint: What x-value corresponds to 2015?]

Reference: See Example 7