Question 6.420

27. Hurricane Response. A survey found that 19% of respondents in New Orleans rated the overall response by government and volunteer agencies to major hurricanes in the past three years as good or excellent, whereas 57% of those living in other areas did so.19 Suppose that we have a sample of 100 people living in New Orleans and 100 people living in other areas. Approximate the following probabilities:

390

  1. At least 30 of the respondents living in New Orleans rated the response as good or excellent.
  2. At least 30 of the respondents living in other areas rated the response as good or excellent.
  3. Fewer than 20 of the respondents living in New Orleans rated the response as good or excellent.
  4. Fewer than 20 of the respondents living in other areas rated the response as good or excellent.

6.6.27

(a) 0.0037 (b) 1 (c) 0.5517 (d) 0