Marketing-Coastal Star Sales Corporation is a West Coast wholesaler
Coastal Star Sales Corporation is a West Coast wholesaler that markets leisure products from several manufacturers. Coastal Star has an 80-person sales force that sells to wholesalers in a six-state area, which is divided into two sales regions. The chart below show the names of a sample of eleven salespeople, some descriptive information about each person, and sales performance for each of the last two years.
Questions:
1. Calculate a mean and a standard deviation for each variable.
2. Set a 95 percent confidence interval around the mean for each variable.
3. Calculate the median, mode, and range of each variable.
4. Organize the data for current sales into a frequency distribution with three classes: (a) under $500,000, (b) $500,000 to $999,999, and (c) $1,000,000 and over.
5. Organize the data for years of selling experience into a frequency distribution with two classes: (a) less than five years and (b) five or more years.
| Sales | |||||
| Region | Salesperson | Age | Years of Experience | Previous Year | Current Year |
| Northern | Jackson | 40 | 7 | $412,744 | $411,007 |
| Northern | Gentry | 60 | 12 | $1,491,024 | $1,726,630 |
| Northern | La Forge | 26 | 2 | $301,421 | $700,112 |
| Northern | Miller | 39 | 1 | $401,241 | $471,001 |
| Northern | Mowen | 64 | 5 | $448,160 | $449,261 |
| Southern | Young | 51 | 2 | $518,897 | $519,412 |
| Southern | Fisk | 34 | 1 | $846,222 | $713,333 |
| Southern | Kincaid | 62 | 10 | $1,527,124 | $2,009,041 |
| Southern | Krieger | 42 | 3 | $921,174 | $1,030,000 |
| Southern | Manzer | 64 | 5 | $463,399 | $422,798 |
| Southern | Weiner | 27 | 2 | $548,011 | $422,001 |
| Source: Cengage Learning 2013. |
Source: Cengage Learn 2013.
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Solution: Marketing-Coastal Star Sales Corporation is a West Coast wholesaler