A Population Proportion · Exercise 43
Five hundred and eleven (511) homes in a certain southern California community are randomly surveyed to determine if they meet minimal earthquake preparedness recommendations. One hundred seventy-three (173) of the homes surveyed met the minimum recommendations for earthquake preparedness, and 338 did not.
Find the confidence interval at the 90% Confidence Level for the true population proportion of southern California community homes meeting at least the minimum recommendations for earthquake preparedness.
(a) (0.2975, 0.3796)
(b) (0.6270, 0.6959)
(c) (0.3041, 0.3730)
(d) (0.6204, 0.7025)
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Introductory Statistics 2e · §8.3 A Population Proportion · Exercise 43
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