Question

Data was collected on salaries of compliance specialists in corporate accounting firms. The salaries ranged from...

Data was collected on salaries of compliance specialists in corporate accounting firms. The salaries ranged from ​$63,000 to ​$303,000.

a. If these values are grouped into six class​ intervals, indicate the class boundaries.

b. What class interval width was​ chosen?

c. What are the six class​ midpoints?

Math   Statistics-And-Probability   
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Answer #1

minimum = 63000
Maximum = 303000

Class width = (303000 - 63000)/6 = 40000

Class Lower Upper Lower boundary Upper boundary Midpoint
63001-103000 63001 103000 63000.5 103000.5 83000.5
103001-143000 103001 143000 103000.5 143000.5 123000.5
143001-183000 143001 183000 143000.5 183000.5 163000.5
183001-223000 183001 223000 183000.5 223000.5 203000.5
223001-263000 223001 263000 223000.5 263000.5 243000.5
263001-303000 263001 303000 263000.5 303000.5 283000.5
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