A politician claims that she will receive 60% of the vote in an upcoming election. The results

Question:

A politician claims that she will receive 60% of the vote in an upcoming election. The results of a properly designed random sample of 100 voters showed that 50 of those sampled will vote for her. Is it likely that her assertion is correct at the 0.05 level of significance?
a. Solve using the p-value approach.
b. Solve using the classical approach.