College graduates are getting more for their degrees as starting salaries rise. To compare the starting salaries of college graduates majoring in chemical engineering and computer science, random samples of 50 recent college graduates in each major were selected and the following information obtained.

a. Find a point estimate for the difference in starting salaries of college students majoring in chemical engineering and computer science. What is the margin of error for your estimate?

b. Based upon the results in part a, do you think that there is a significant difference in starting salaries for chemical engineers and computer scientists? Explain.

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Mean SD Major Chemical engineering Computer science SD 2225 2375 $53,659 51,042