Question
use a given degree of confidence and sample data to construct a confidence interval. a study...
use a given degree of confidence and sample data to construct a confidence interval.
a study involves 607 randomly selected deaths, with 35 of them caused by accidents. Construct a 98% confidence interval for the true percentage of all deaths that are caused by accidents
Homework Answers
Answer #1
We need to construct the 98\%98% confidence interval for the population proportion.
The sample proportion is computed as follows, based on the sample size n=607 and the number of favorable cases x=35 .
The critical value for α=0.02 is Zα =2.326. The corresponding confidence interval is computed as shown below:
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