The issue/scenario: A bio-tech firm has provided you with 1 years’ worth of sales for a sample of 45 sales staff. Some of its sales staff are engineers and others are not. You are to analyze this data to help the company determine whether there are any differences in the sales between engineers and non-engineers. Arguably, perhaps engineers are better able to answer technical questions, but may not have the same skills as others. Additionally, the company would like to use this data to obtain an estimate of its average (annual) sales and how they compare to last year. To aid you, I have provided you with the following “guiding steps”: 1)Use a bivariate tabular method to study the relationship between “Sales” and “Engineer.” Based on this analysis, are engineers better or worse than non-engineers at
The issue/scenario: A bio-tech firm has provided you with 1 years’ worth of sales for a sample of 45 sales staff. Some of its sales staff are engineers and others are not. You are to analyze this data to help the company determine whether there are any differences in the sales between engineers and non-engineers. Arguably, perhaps engineers are better able to answer technical questions, but may not have the same skills as others. Additionally, the company would like to use this data to obtain an estimate of its average (annual) sales and how they compare to last year.
To aid you, I have provided you with the following “guiding steps”:
1)Use a bivariate tabular method to study the relationship between “Sales” and “Engineer.” Based on this analysis, are engineers better or worse than non-engineers at Sales (higher sales are considered better)?
| Sales | Engineer |
| 113 | No |
| 98 | No |
| 76 | No |
| 101 | No |
| 120 | No |
| 131 | No |
| 66 | No |
| 98 | No |
| 83 | No |
| 75 | No |
| 87 | No |
| 96 | Yes |
| 90 | Yes |
| 117 | Yes |
| 118 | Yes |
| 95 | Yes |
| 94 | Yes |
| 119 | Yes |
| 115 | Yes |
| 99 | Yes |
| 102 | Yes |
| 129 | Yes |
| 100 | Yes |
| 111 | Yes |
| 128 | Yes |
| 104 | Yes |
| 133 | Yes |
| 125 | Yes |
| 99 | Yes |
| 90 | Yes |
| 122 | Yes |
| 62 | Yes |
| 100 | Yes |
| 123 | Yes |
| 120 | Yes |
| 71 | Yes |
| 102 | Yes |
| 89 | Yes |
| 106 | Yes |
| 80 | Yes |
| 99 | Yes |
| 104 | Yes |
| 105 | Yes |
| 105 | Yes |
| 90 | Yes |
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