statistic Q

Dear,

i am a student and I need help in comparing between different slopes  
and
finding whther there is a significant difference between them?

slope1/slope2 > 1

If TRUE then slope1 is greater.

OK. That was facetious. But I hope it highlights what's missing from  
your question:

  .... An example in R code.

David Winsemius, MD
West Hartford, CT