63 774
Assignments Done
99,3%
Successfully Done
In August 2018

Answer to Question #814 in Statistics and Probability for Sara

Question #814
When we can use t-statistics instead of z-statistics?
Expert's answer
If & the population standard deviation is known, we use z-statistics, if it is unknown - t-statistics. When the size of the sample is large, the distribution of the data becomes closer to the Normal distribution and z-statistics can be used, in different sources N should be more than 30 or 50.

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be first!

Leave a comment

Ask Your question

Submit
Privacy policy Terms and Conditions