Researchers selected

835

patients at random among those who take a certain widely-used prescription drug daily. In a clinical trial,

18

out of the

835

patients complained of flulike symptoms. Suppose that it is known that

1.9%

of patients taking competing drugs complain of flulike symptoms. Is there sufficient evidence to conclude that more than

1.9%

of this drug's users experience flulike symptoms as a side effect at the

=0.1

level of significance?