SCENARIO 1: The table below presents the summary statistics for the starting annual salaries (in thousands of dollars) for individuals entering the public accounting and financial planning professions.

Sample I (public accounting): X-bar 1= 60.35 , S1= 3.25, n1=12

Sample II (financial planning): X-bar 2= 58.20 , S2= 2.48, n2=14

Test whether the mean starting annual salaries for individuals entering the public accounting professions is higher than that of financial planning assuming that the two population variances are the same.

which of the following represents the relevant hypotheses tested?

a.

H0:1- 2 0 versus H1: 1- 2 < 0

b.

H0:1- 2 0 versus H1: 1- 2 >

c.

H0:1- 2 = 0 versus H1: 1- 2 0

d.

H0:1- 2 0 versus H1: 1- 2 = 0

Referring to Scenario 1, what is(are) the critical value(s) of the relevant hypothesis test if the level of significance is 0.05?