Self-study
All highly successful salespersons are both well organized and self-motivated, characteristics absent from many salespersons who are not highly successful. ████████ ████████ ████ █████ ███ ███ ██████ ██████████ ███ ████ █████ █████ █████ ██████ ██ ████████████ ███ ███ ██████████████ ██████ █████ ██████ ████████
Summary
The stimulus can be diagrammed as follows:
Notable Valid Inferences
Well known people don’t regret their career choices.
If someone is not well organized, then they are not well known.
If someone is not self motivated, then they are not well known.
22.
If all of the statements █████ ███ █████ █████ ███ ██ ███ █████████ ████ ██ █████
a
No self-motivated salespersons ███ ███ ███ ██████ ██████████ ███ ████ ██████████
This could be false. We don’t know anything about the subset of salespersons who are both self motivated and not highly successful. We can’t say whether or not they are well organized.
b
All salespersons who ███ ████ █████████ ███ ███ ██████ ██████████ ███ ███████████████
This could be false. We don’t know anything about the group of salespersons who are both well organized and not highly successful.
c
No salespersons who ███ ████ █████ █████ █████ █████ ██████ █████ ██████ ████████
This must be true. This answer can be rewritten as “Well Known→ /Regret.” As shown in the diagram, by chaining the conditional claims, we see that not regretting career choices is a necessary condition of being well known.
d
All salespersons who ███ ███ ████ █████████ ██████ █████ ██████ ████████
This could be false. “/WO→R” is not a valid inference that shows up on the diagram. It could be the case that some salesperson is not well organized and also does not regret their career choice.
e
All salespersons who ██ ███ ██████ █████ ██████ ███████ ███ ██████ ███████████
This could be false. (E) is an incorrect reversal of the conditional relationship. We know that all people who are highly successful do not regret their career choices. (HS→/R). (E) says “/R→HS.” This incorrectly flips the sufficient and necessary conditions.