Separate random samples were collected by a polling agency to investigate the difference in employee satisfaction atnon-profit organizations and atfor-profit companies. Data collected from 435 employees atnon-profit organizations revealed that 386 of them were"highly satisfied." From thefor-profit companies, 438 out of 517 employees reported the same level of satisfaction. Researchers want to test if the proportions of satisfied employees are the same atfor-profit companies as atnon-profit companies. Complete parts a through c below.

What is the difference in the proportions of the two types ofcompanies? Assume p1 is the proportion of satisfiednon-profit employees and p2 is the proportion of satisfiedfor-profit employees.

What is the value of thez-statistic?

Write the appropriate hypotheses. Let p1 be the proportion of satisfied employees fromnon-profit organizations. Let p2 be the proportion of satisfied employees fromfor-profit companies. Choose the correct answer below.

Determine the test statistic.

What do you conclude at =0.01?

Find theP-value.

State the conclusion.