In an attempt to compare the starting salaries for university graduates who majored in education…
Major Mean St.Dev.
Education $50,554 $2225
Socal Science $48,348 $2375
Conduct an appropriate hypothesis test at the 5% level of significance to determine if there is an difference in the average starting salaries for all universitygraduates who majored in education and the scocial science.
Conduct this test using:
(i) the p-value method
(ii) the critical value method
(iii) the confidence interval method