Question
I am stuck on how to work through these problems. 1) Find the probability associated with a z score of 1.20. 2) Find the probability
I am stuck on how to work through these problems.
1) Find the probability associated with a z score of 1.20.
2) Find the probability associated with a z score of 2.25.
3) Find the z score associated with a probability of .2912.
4) Find the z score associated with a probability of .0062.
5) Find a t-score using a two-tailed test, an alpha level of .05, and ten degrees of freedom.
6) Find a t-score using a one-tailed test, an alpha level of .01, and fifteen degrees of freedom.
7) Why are t-scores larger with fewer degrees of freedom and smaller with more degrees of freedom?
8) 1) Find the probability associated with a z-score of 1.96. 2) Find t scores using a two-tailed test, a .05 alpha level, and an infinite degree of freedom. What is the important relationship between the first and second probabilities you just found?
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