It came as a big surprise when Appleâs touch screen iPhone 4, considered by many to be the best smartphone ever, was found to have a problem (The New York Times, June 24, 2010). Users complained of weak reception, and sometimes even dropped calls, when they cradled the phone in their hands in a particular way. A quick survey at a local store found that 2% of iPhone 4 users experienced this reception problem.

1. State whether the following statement is true or false. The population is all iPhone 4 users.

a.)True

b.) False

2.) Does 2% denote the population parameter or the sample statistic?

a.) Population parameter

b.) Sample statistic

Given that it came as a big surprise when Appleâs touch screen iPhone 4, considered by many to be the best smartphone ever, was found to have a problem (The New York Times, June 24, 2010). Users complained of weak reception, and sometimes even dropped calls, when they cradled the phone in their hands in a particular way. A quick survey at a local store found that 2% of iPhone 4 users experienced this reception problem

Here all iphone users are the subject matter of interest.

Hence the population is all Iphone 4 users.

2% is the characteristic of the sample of survey done hence this is a sample statistic

1) a) true

2) b) Sample statistic