Perform a test using the critical value approach to determine if BBBanking is underpaying its workers. State the null hypothesis.
a. The average salary at BBBanking is equal to industry standards.
b. The average salary at BBBanking is higher than industry standards.
c. The average salary at BBBanking is lower than industry standards.
d. The average salary at BBBanking is not significantly different from industry standards.
