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Question
The number of cars sold by three salespersons over a 6-month period are shown in the table below. Use the 5% level of significance to test for independence of salespersons and type of car sold.| Insurance Preference | ||||
| Chevrolet | Ford | Toyota | ||
| Ali | 15 | 9 | 5 | 29 |
| Bill | 20 | 8 | 15 | 43 |
| Chad | 13 | 4 | 11 | 28 |
| 48 | 21 | 31 | 100 | |
Answer
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