Choose the one alternative that best completes the statement or answers the question.
-A government agency believes that the median hourly wages for retail store workers in the central U.S. is $\$ 6.70$. In a random sample of 100 workers, 68 were paid less than $\$ 6.70,10$ were paid $\$ 6.70$, and the rest more than $\$$ 6.70. Find the critical values to test the government's hypothesis. Use $\alpha = 0.05$.
A) $\pm 1.96$
B) $\pm 1.645$
C) $\pm 2.575$
D) $\pm 2.33$

Question

Quizplus · Accepted Answer

The critical value for a two-tailed test with $\alpha = 0.05$ is $\pm 1.96$, which corresponds to the 95% confidence level in a normal distribution.

Choose the One Alternative That Best Completes the Statement or Answers