Let's say you are presented with a decision between two choices, A and B. Let's also say that A and B could be the performance records of two potential job candidates you might hire, or the market sizes (every year, over a period of time) of two different potential geographic expansion targets for a retail outlet you plan to build. Assume that the two job candidates are identical in every way except for their performance records, and the geographic expansion targets are identical in every way except for their market sizes, over time. To be able to compute the t-score of a comparison between these two choices, A and B, you MUST HAVE AT LEASTwhich of the following (select all that apply).

...the interrater reliability score of the two sets of observations for choices A and B

...the subtracted difference between the highest and lowest values in choice sets A and B. (i.e., the range)

...the political affiliations of the entities in question

...the barometric pressure of the two geographic regions

...a list of all observations for each choice set. All of the observations for both A and B.

...the correlation between all the observations from both choice set A and choice set B