The director of research and development is testing a new drug.

She wants to know if there is evidence at the $0\mathrm{.}05$ level that the

drug stays in the system for more than $393$ minutes. For a sample of

$14$ patients, the average time the drug stayed in the system was $398$

minutes with a variance of $576.$ Assume the population distribution

is approximately normal.Step$1$of$5$:$$State the null and alternative hypotheses.