Sample size?

[Ian robert]

Hi ,
I’m sure I’m missing something but just can’t get started finding the sample size ,any help appreciated,thanks.

 

[khansaheb]

Is this a problem from "instructional" class? What textbook are you "following"?

Please share your work/thoughts so that we know where to begin to help you!

 

[Ian robert]

Hi it’s a past paper question,no solution,using this textbook

Amazon.co.uk

I would normally post my efforts but absolutely no idea how to start to find sample size othe than it must be something to do with the variance/ covariancematrix.
Sorry!

 

[khansaheb]

Hi it’s a past paper question,no solution,using this textbook

Amazon.co.uk

I would normally post my efforts but absolutely no idea how to start to find sample size othe than it must be something to do with the variance/ covariancematrix.
Sorry!

Did you read the relevant chapters in the book?
Generally, the sample size depends on the "assumed" nature of the distribution.
What are the salient features of these observations?

 

[Ian robert]

Hi,
The only information I have is in the question and that it is a regression problem,which is what I have been studying and is what the textbook is about.