Question

If you live in California, the decision to purchase earthquake insurance is a critical one. An article in the Annals of the Association of American Geographers investigated many factors that California residents consider when purchasing earthquake insurance. The survey revealed that only 103 of 343 randomly selected residences in Los Angeles County were protected by earthquake insurance. Estimate with 98% confidence the proportion of all L.A. County residences that have earthquake insurance. (Round to 3 decimal places.)

Complete the following sentence to provide an interpretation of the confidence interval in the context of the problem:

We are 98% confident that the   (Click to select)  sample  population       (Click to select)  standard deviation  proportion  mean    of   (Click to select)  343  all  L.A. County residences that have earthquake insurance is between     and  .

Answer 1