2. A Pew Research study regarding cell phones asked questions about cell phone experience. One growing
concern is unsolicited advertising in the form of text messages. Pew asked cell phone owners, "Have you
ever received unsolicited text messages on your cell phone from advertisers?" and 17% reported that they
had. Pew estimates a 95% confidence interval to be or between 13% and 21%. What does this mean?
A. In Pew's sample, somewhere between 13% and 21% of respondents reported that they had received
unsolicited advertising text messages.
B. We can be 95% confident that 17% of U.S. cell phone owners have received unsolicited advertising
text messages.
C. We are 95% confident that between 13% and 21% of all U.S. cell phone owners have received
unsolicited advertising text messages.
D. We know that between 13% and 21% of all U.S. cell phone owners have received unsolicited
advertising text messages.
E. 95% of all U.S. cell phone owners have received unsolicited advertising text messages.