Need someone to look over my work please.
Here is the question:
A recent study of the hourly wages of maintenance crew members for major airlines showed that the mean hourly salary was $20.50, with a standard deviation of $3.50. If we select a crew member at random, what is the probability the crew member earns:
a). Between $20.50 and $24.00 per hour?
b). More than $24.00 per hour?
c). Less than $19.00 per hour?
My answers are:
a). $20.50-$24.00/$3.50 = 3.50/350=1 $43.82%
b). $24.00-$20.50/$3.50 = 3.50/3.50 = 1 .3413+.5000=84.13%
c). .5000-.4382= .0618
Thanks in advance for any help.
Here is the question:
A recent study of the hourly wages of maintenance crew members for major airlines showed that the mean hourly salary was $20.50, with a standard deviation of $3.50. If we select a crew member at random, what is the probability the crew member earns:
a). Between $20.50 and $24.00 per hour?
b). More than $24.00 per hour?
c). Less than $19.00 per hour?
My answers are:
a). $20.50-$24.00/$3.50 = 3.50/350=1 $43.82%
b). $24.00-$20.50/$3.50 = 3.50/3.50 = 1 .3413+.5000=84.13%
c). .5000-.4382= .0618
Thanks in advance for any help.
