) Harris Interactive conducted a poll of American adults in August of 2017 to study the...
) Harris Interactive conducted a poll of American adults in August of 2017 to study the use of online medical information. Of the 1,019 randomly chosen adults, 60% had used the Internet within the past month to obtain medical information. Use the results of this survey to create a 92% confidence interval for the percentage of all American adults who have used the Internet to obtain medical information in the past month. Interpret the interval.
Homework Answers
n= 1019
Alpha=1-0.92=0.08
92% confidence interval is
Where Zc is critical value of Z
(0.573, 0.627) is 92% confident interval for population proportion.
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