Question: Complete the analysis begun in Exercise 2. a) What is the difference in the proportions of the two types of companies? b) What is the

Complete the analysis begun in Exercise 2.
a) What is the difference in the proportions of the two types of companies?
b) What is the value of the z-statistic?
c) What do you conclude at α = 0.05?

Data From Exercise 2

Do people who work for non-profit organizations differ from those who work at for-profit companies when it comes to personal job satisfaction? Separate random samples were collected by a polling agency to investigate the difference. Data collected from 422 employees at non-profit organizations revealed that 377 of them were “highly satisfied.” From the for-profit companies, 431out 518 employees reported the same level of satisfaction. Find the standard error of the difference in sample proportions.

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