4) The Bureau of Labor Statistics reported in a recent year that 5% of employed adults in the United States held multiple jobs. A random sample of 350 employed adults is chosen.

a) What is the sampling distribution of the proportion of employed adults in the United States who hold multiple jobs? (i.e. What is the sampling distribution of p ?)

b) Find the probability that less than 6.5% of the individuals in the sample hold multiple jobs.