For Exercises 17.1 and 17.2, see pages 17-3 to 17-4; for 17.3 and 17.4, see page 17-5; for 17.5 to 17.7, see page 17-8; for 17.8 to 17.10, see page 17-11; and for 17.11 to 17.13, see page 17-14.
17.2 Use of audio/visual sharing through social media.
In Case 8.3 (page 438), we studied data on large and small food and beverage companies and the use of audio/visual sharing through social media. Here are the data:
| Observed numbers of companies | |||
| Use A/V sharing | |||
| Size | Yes | No | Total |
| Small | 150 | 28 | 178 |
| Large | 27 | 25 | 52 |
| Total | 177 | 53 | 230 |
What proportion of the small companies use audio/visual sharing? What proportion of the large companies use audio/visual sharing? Convert each of these proportions to odds.