12 A survey conducted in 2021 showed that 10\% of British adults were vegetarians.
A dietitian believes that the proportion of British adults who are vegetarians may have changed, so decides to conduct a hypothesis test at the \(5 \%\) level of significance.
In a random sample of 112 adults, the dietitian finds that there are 19 vegetarians.
Carry out the hypothesis test to determine whether there is any evidence to support the dietitian’s belief.