SOLUTION: Researchers were studying the relationship between age and pocket depth. They measured the pocket depth of 11 young subjects (ages 20-25) and 11 old subjects (ages 50-55). They w

Algebra ->  Probability-and-statistics -> SOLUTION: Researchers were studying the relationship between age and pocket depth. They measured the pocket depth of 11 young subjects (ages 20-25) and 11 old subjects (ages 50-55). They w      Log On


   

Question 218363: Researchers were studying the relationship between age and pocket depth. They measured the pocket depth of 11 young subjects (ages 20-25) and 11 old subjects (ages 50-55). They wanted to know if there was a difference in mean pocket depth between the two groups. Assume that pocket depth has a relatively normal distribution.
Name the appropriate test, and state the null and alternative hypotheses. What assumption would need to be made for this test?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Researchers were studying the relationship between age and pocket depth. They measured the pocket depth of 11 young subjects (ages 20-25) and 11 old subjects (ages 50-55). They wanted to know if there was a difference in mean pocket depth between the two groups. Assume that pocket depth has a relatively normal distribution.
Name the appropriate test,
2-sample Ttest
--------------------
state the null and alternative hypotheses
Ho: u1 - u2 = 0
H1: u1 - u2 is not 0
-------------------------------
What assumption would need to be made for this test?
I'll leave that to you.
Cheers,
Stan H.