The Information Technology personnel at the Tech Caf$$ have specific Service Level Agreements $($SLAs$)$ for responding to calls based on severity level. The Service Level Agreement for a Severity One issue $($highest priority$)$ calls for an $$immediate$$ solution within the first five minutes for $70\%$ of the calls. To monitor conformance to the SLA, random samples of n $=160$ Severity One calls are taken monthly and the proportion of calls solved within the first five minutes is recorded.

Using this information, answer the following questions $($remember to show the normal distribution graph, p$-$scale, z$-$scale, and the desired shaded area for each question$).$