step  To run a factor analysis, from the menus choose:

Analyze
  Data Reduction
   Factor...

step  Select Long distance last month through Wireless last month and Multiple lines through Electronic billing as analysis variables.

step  Click Descriptives.

step  Select Anti-image and KMO and Bartlett's test of sphericity.

step  Click Continue.

step  Click Extraction in the Factor Analysis dialog box.

step  Select Principal axis factoring from the Method list.

step  Select Scree plot.

step  Click Continue.

step  Click Rotation in the Factor Analysis dialog box.

step  Select Varimax in the Method group.

step  Select Loading plot(s) in the Display group.

step  Click Continue.

step  Click OK in the Factor Analysis dialog box.

These selections produce a solution using Principal axis factoring extraction, which is then given a Varimax rotation.