Briefly contrast a Zdistribution with a tdistribution Is one

Briefly contrast a Z-distribution with a t-distribution. Is one \"better\" than the other? Easier to work with?

Solution

The z distribution is basically a t-distribution with infinitely many degrees of freedom.

In terms of usage, z is ready to use once you have the test statistic. However, t still needs the number of degrees of freedom, aside from the test statistic.

We cannot say one is better than the other, as each one has its own use. However, in terms of ease in use, of course, z distribution is easier, we don\'t need degrees of freedom there.