What motivates employees? The Great Place to Work Institute evaluated non-financial factors both globally and in the United States.

a. At the 0.05 level of significance, is there evidence of a difference in the mean rating between global and U.S. employees?

b. What assumption is necessary about the population distribution in order to perform this test?

c. Use a graphical method to evaluate the validity of the assumption in (b).

Factor	Global	U.S.
Being treated with respect	119	123
Work/life balance	111	112
The type of work that you do	110	111
The quality of the people you work with	107	111
The quality of the leadership of the organization	107	112
Base pay	106	104
Working in an environment where you can provide good service to others	104	112
Long-term career potential	92	91
Having flexible working arrangements	91	91
Learning and development opportunities	90	81
Benefits	90	106
Promotion opportunities	89	77
Incentive pay/bonus	84	71
data