PMCC Hypothesis L

Question 1

What’s going on PMCC

Answer 1

You sampling randomly from a parent
- find a correlation coeffiencet if sample
- and you want to see if this is strong enough such that you can say the parent population also has certain correlation too

Question 2

Why does the sample not mean your parent is encarily the sam

Answer 2

If sample was done such that it might like negative correlated when it’s acc positive

Question 3

Reject 2 tail

Answer 3

Insufficient evidence ti suggest there is any correlation.

Question 4

What happens to critical values as samp size increases? Why problem

Answer 4

As sample increase critical values decrease and get really slow

Hence the PMCC r value does not have to be that big to reject the null hypothesis

This is a problem because you could easilly reject when there is no connection what do ever!

Question 5

Coen effect size

Answer 5

So when n is large and PMCC are close to these values , say the effect based on that ( means correlation )