Final answer:
The nurse manager would evaluate the statement that claims a guaranteed increase in nurse salaries due to the shortage of nurses as misinformation.
Step-by-step explanation:
Based on the information provided, the statement that the nurse manager would evaluate as misinformation is: 'While we do not know if the number of nurses will increase or decrease relative to their initial employment, we know they will have higher salaries.' This statement assumes a correlation between the shortage of nurses and higher salaries, which may not be factual. The shortage of nurses could result in increased demand and potentially higher salaries, but it is not a guaranteed outcome.