In: Statistics and Probability
Samples of starting annual salaries for individuals entering the public accounting and financial planning professions follow. Annual salaries are shown in thousands of dollars.
Public Accountant | Financial Planner |
---|---|
51.2 | 49.0 |
57.8 | 50.2 |
57.3 | 52.1 |
58.2 | 54.9 |
54.2 | 51.9 |
54.0 | 52.6 |
49.9 | 50.7 |
59.5 | 54.9 |
58.0 | 51.8 |
51.9 | 47.9 |
(a)
Use a 0.05 level of significance and test the hypothesis that there is no difference between the starting annual salaries of public accountants and financial planners.
State the null and alternative hypotheses.
H0: Median salary for public accountants −
Median salary for financial planners ≤ 0
Ha: Median salary for public accountants −
Median salary for financial planners > 0
H0: The two populations of salaries are not
identical.
Ha: The two populations of salaries are
identical.
H0: Median salary for public accountants −
Median salary for financial planners > 0
Ha: Median salary for public accountants −
Median salary for financial planners = 0
H0: The two populations of salaries are
identical.
Ha: The two populations of salaries are not
identical.
H0: Median salary for public accountants −
Median salary for financial planners ≥ 0
Ha: Median salary for public accountants −
Median salary for financial planners < 0
Find the value of the test statistic.
W =
Find the p-value. (Round your answer to four decimal places.)
p-value =
What is your conclusion?
Reject H0. There is sufficient evidence to conclude that there is a significant difference between the starting annual salaries of public accountants and financial planners.
Do not reject H0. There is sufficient evidence to conclude that there is a significant difference between the starting annual salaries of public accountants and financial planners.
Do not reject H0. There is not sufficient evidence to conclude that there is a significant difference between the starting annual salaries of public accountants and financial planners.
Reject H0. There is not sufficient evidence to conclude that there is a significant difference between the starting annual salaries of public accountants and financial planners.
(b)
What are the sample median annual salaries (in $) for the two professions?
Public Accountants sample median=$
Financial Planners sample median=$