95%CI mean geometric

[Marcia Aviles]

 

How can I calculate 95%CI for the mean geometric with SPSS?

 

Saludos,

Marcia Avilés.

[willers]

The log-transformation converts the geometric mean into the arithmetic mean of the log-value.

1. compute log-values
2. compute mean and CI of log-values in the usual way
3. back-transform the CI with the antilogarithm (exponential function)

Am 06.08.2010 um 15:45 schrieb Marcia Aviles:

 

How can I calculate 95%CI for the mean geometric with SPSS?

 

Saludos,

Marcia Avilés.