A recent report stated that only 20% of all college graduates find work in the field of their undergraduate major. A random sample of 400 graduates from across the country found 100 working in the...

A recent report stated that only 20% of all college graduates find work in the field of their undergraduate major. A random sample of 400 graduates from across the country found 100   working in the field of their undergraduate major. Does the sample provide evidence  to  indicate that the percentage given in the report is too low? Justify.