Posted by **Anonymous** on Wednesday, May 2, 2007 at 6:51pm.

Which of the following statements is true about the t-distribution with k degrees of freedom?

i. the t-distribution is symmetric

ii. the t-distribution with k degrees of freedom has a smaller variance than the t-distribution with k+1 degrees of freedom

iii. the t-distribution has a larger variance than the standard normal (z) distribution

any one, or all three could be right but i dont know which ones are

The first and third are true. The t-distribution is symmetrical; the distribution is lower and the tails are wider than the normal distribution. I think the second one should be k-1 to make the statement true, but check my thinking on that one.

I hope this will help.

## Answer This Question

## Related Questions

- Math T-Distribution - Which of the following is not a characteristic of Students...
- Statistics - Suppose X1;X2;...;X5 is a random sample from a n(0; variance) ...
- AP Statistics - As the degrees of freedom for the t-distribution increase, the ...
- Statistics - As the degrees of freedom for the t-distribution increase, the ...
- Math - Which of the following is not a characteristic of Students' t ...
- statistics - Suppose we take a random sample of size n from a normal population ...
- Statistics - True or False? As the degrees of freedom increase, the Student's t...
- statistics - 1. Which of the following statements are correct? a. A normal ...
- statistic - 1. Which of the following statements are correct? a. A normal ...
- Statistics - Which of the following statements are correct? 1.A normal ...

More Related Questions