4.

State the conclusion in sentence.

An employment counselor found that in a

sample of 300 unemployed

workers, 60% were not interested in returning to work.

a.

(1 pts) Obtain a point estimate for the proportion of workers who do not wish to return to work.

b.

(2 pts) Verify that the requirements for constructing a confidence interval

for population proportion are

satisfied.

c.

(5 pts) Construct a 90% confidence interval for the proportion of workers who do not wish to return to

work.

d.

(2 pts) Interpret the confidence interval.