Workshop 2

# Workshop 2 - Business and Statistics A Workshop 2 Problems...

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Business and Statistics A Workshop 2 Problems 1.(Chapter 3, problem 3.4) Compute the mean for the following numbers. 2. (Chapter 3, problem 3.8) The following table presents New Zealand's top 15 trading partners classified according to export value for 2007. Compute the mean and median. Repeat calculations, after eliminating Australia, United States of America and Japan. How are the mean and median affected by this change. 3. (Chapter 3, problem 3.12) A data set contains the following eight values.

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(a) Find the range. (b) Find the sample variance. (c) Find the sample standard deviation. 4. (Chapter 3, problem 3.18) Compare the variability of the following two sets of data by using both the standard deviation and the coefficient of variation. 5. (Chapter 3, problem 3.32) The following data represent the number of appointments made per 30-minute interval by telephone solicitation for a lawn-care company. (a) Calculate the mean of the data. (b) Calculate the mode.
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