A study was conducted to examine how anxiety (measured on a metric scale) varies for people from different age groups (

A study was conducted to examine how anxiety (measured on a metric scale) varies for people from different age groups (<18 years,="" 19="" -="" 29="" years,="" 30="" -="" 39="" years,="" 40+="" years).="" it="" was="" hypothesised="" that="" people=""><18 years="" old="" would="" have="" the="" least="" anxiety="" of="" the="" four="" age="" groups.="" it="" was="" also="" hypothesised="" that="" people="" 40+="" years="" old="" would="" have="" more="" anxiety="" than="" people="" 19-29="" years="">

Which of the following would be an appropriate statistical test to conduct, which addresses these hypotheses?