Solution :
To claim to be tested is whether "the mean salary is higher than 48,734".
i.e. μ > 48,734
Therefore the null and the alternative hypothesis are 

and 
Here, n = 50

s = 3600
We take , α = 0.05
The test statistics t is given by 


t = 2.15
Now the ">" sign in the  sign indicates that the right tailed test
 sign indicates that the right tailed test 
Now degree of freedom, df = n - 1 
                                               = 50 - 1 
                                               = 49
Therefore, the p value = 0.02
The observed p value is less than α = 0.05, therefore we reject  . Hence the mean salary that the accounting graduates are offered from the university is more than the average salary of 48,734 dollar.
. Hence the mean salary that the accounting graduates are offered from the university is more than the average salary of 48,734 dollar.