The mean salary at a local industrial plant is $30000 with a standard deviation of $4900. The median salary is $26600 and the 60th percentile percentile is $31000. True or false approximately 60% of the salaries are less than or equal to $31000. True or false joes salary of $36670 is 1.30 standard deviation above the mean. True or false the percentile rank of $26600 is 50. True or false approximately 10% of the salaries are between $30000 and $31000. If toms salary has a z- score of 0.6 how much does he earn in dollars.