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Question
A marketing firm is developing a new television advertisement for a large discount retail chain. A sample of 30 people is shown two potential ads and asked their preference. The results for ad #1 follow. Use Excel to develop a 95% confidence interval estimate of the proportion of people in the population who will prefer ad #1.| Prefer Advertisement #1 | |||||
| yes | no | no | yes | yes | no |
| no | no | no | yes | no | yes |
| no | no | yes | yes | yes | no |
| yes | yes | no | no | no | yes |
| yes | no | yes | yes | no | no |
Answer
This answer is hidden. It contains 429 characters.
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