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A sales manager for a company that makes commercial ovens 



1.	Consider the frame of 50 full-time employees of Computer Technologies, Inc (CTI). CTI- human resources manager has collected annual salary figures for all employees and she has calculated a mean of $47,723, a median of $41,082 and a standard deviation of $24,167. A simple random sample of 10 employees is presented below (salary is in $1,000-). Compute the mean, median, and standard deviation for the sample and compare these statistics with the measures for the entire company.

Employee	1	2	3	4	5	6	7	8	9	10
Salary	38.8	46.7	61.1	49.6	58.5	78.8	36.7	46.5	47.6	56.7


	2.	A sales manager for a company that makes commercial ovens for restaurants is interested in estimating the average number of restaurants in all metropolitan areas across the entire country. He does not have access to the data for each metropolitan location, so he had decided to select a sample that will be representative of all such areas, and will use a sample size of 30. Do you believe that simple random sampling is the best approach to obtaining a representative subset of the metropolitan areas in the given frame? Explain. If not, recommend how the sales manager might proceed to select a better sample of size 30 from this data?





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