Ranking companies. Every year Fortune Magazine lists the 100 best companies to work for, based on criteria such as pay, benefits, turnover rate, and diversity. In 2008, the top three were Google, Quicken Loans, and Wegmans Food Markets (Fortune, February 4, 2008). Of the best 100 companies to work for, 33 experienced double digit job growth (10%–68%), 49 experienced single digit job growth (1%–9%), and 18 experienced no growth or a decline.

A closer examination of the top 30 showed that 15 had job growth in the double digits, 11 in the single digits, and only 4 had no growth or a decline. Is there anything unusual about job growth among the 30 top companies?

a) Select the appropriate procedure.

b) Check the assumptions.

c) State the hypotheses.

d) Test an appropriate hypothesis and state your results.

e) Interpret the meaning of the results and state a conclusion.