true or false 1 as the degrees of freedom decreases the t di

true or false?

1. as the degrees of freedom decreases, the t distribution approaches the standard normal distribution.

2. the sampling distribution of x-bar depends on (standard deviation symbol).

3. like the z statistic, the t statistic is normally distributed.

4. the t statistic differs from the z statistic in that it uses the standard error of x-bar rather than the standard deviation.

Solution

1. TRUE

2. TRUE

3. FALSE

4. FALSE