Annual starting salaries for college graduates with degrees inbusiness administration are generally expected to be between$42,000 and $59,800. Assume that a 95% confidence interval estimateof the population mean annual starting salary is desired. (Roundyour answers up to the nearest whole number.)
What is the planning value for the population standarddeviation?
A. How large a sample should be taken if the desired margin oferror is $600?
B. How large a sample should be taken if the desired margin oferror is $200?
C. How large a sample should be taken if the desired margin oferror is $100?
D. Would you recommend trying to obtain the $100 margin oferror? Explain.
