Question

Jamieson and Romer, (2008), evaluated children’s believes concerning life expectancy in a diverse sample of American children. In their study, they reported add a 95% CI that approximately one out of every 15 years interviewed (6.7%[5.9%, 7.5%]) responded that they agreed they would not live much past the age of 30.

a. what is the point estimate an interval estimate for these data

b. these researchers computed and 80% CIA, how would this change the precision and certainty of their estimate ?

Answer 1

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