sector employees in unions in 1982 for each state, along with indicators of whether the
states had a bargaining law that covered public employees or right-to-work laws.
a) Test the hypothesis that the mean percent of employees in unions for both the
public sector and private sector is the same for states having bargaining laws as
for those who do not.
b) Test the hypothesis that the mean percent of employees in unions for both the
public sector and private sector is the same for states having right-to-work laws as
for those who do not.