In order to test for the effectiveness of a newly developed drug, a diligent

young scientist collects $250$ different random samples. All those samples are independent

of each other. For each sample, he applies the t$-$test and finds that $11$ out of the

$250$ tests are significant at the level of $0$:$05.$ Do you think the researcher has found

enough evidence to reject the null hypothesis that the drug has no effect? Explain your

answer in no more than two sentences.