Setting threshold

Hi Guys,

I will sincerely appreciate if I can get help with this problem. I need to know what statistical methodology should I use. I have tried bootstrapping but it did not work.

I am trying to find the threshold of the reliability It is not statistical reliability Client A wants to launch their product in America and they want to know which website is more reliable and in which suburb. In the data set I have contain domain name ( youtube, facebook.....n),Total Vists to each domain name (35723000,100863000...n),Market proportion (3.58%, 10.11%), Segment 3 -has eservice, specific clients (Visits -10967,33253......), Segment 3 -has e service specific clients (Market proportion -3.78%,11.87%.....n),Index (105,113.....n).

Index has been calculated from the given information.It was in the data as it is. Now I need to find the most reliable website to advertise the product hence i need to find the threshold where I can say this domain name is reliable. Need to decided threshold of Index (Supposing it as 100)

Can't really think of anything except bootstrapping but that also might not give the right answer so just wondering if same one can see if we can do something else with it.

Please let me know as soon as possible if you can provide me help with this problem.