Carlos and Devon both accepted new jobs at different companies. Carlos's starting salary is
$30,000
and Devon's starting salary is
$30,000
. They are curious to know who has a better starting salary when compared to the salary distributions of their new employers. A website that collects salary information from a sample of employees for a number of major employers reports that Carlos's company offers a mean salary of
$47,000
with a standard deviation of
$7,000
. Devon's company offers a mean salary of
$40,000
with a standard deviation of
$6,000
. Find the
z
-scores corresponding to each of their starting salaries. Round to two decimal places, if necessary.