A Government Agency Claims That the Median Hourly Wages for Workers

Multiple Choice

A government agency claims that the median hourly wages for workers at fast food restaurants in the western U.S. is $6.55. In a random sample of 100 workers, 68 were paid less than $6.55, 10 were paid
$6.55, and the rest more than $6.55. Find the test statistic z to test the governmentʹs claim.

A) -4.743
B) -3.912
C) -3.187
D) -2.386