True or False:

1. We should always expect scenario analysis to provide more accurate estimates for NPV than sensitivity analysis.

2. Looking at capital market history, assets with the highest risk always have the highest average returns.

3. Weak form market efficiency implies that portfolio managers should not be able to achieve abnormal returns by looking at stock price trends to make investment decisions.

4. If Jeff Bezos, CEO of Amazon, can't earn "abnormal" returns by trading on information that only he knows, then markets must be strong-form efficient.