Question:A newsgroup is interested in constructing a 90% confidence
interval for the proportion of all Americans...
Question
A newsgroup is interested in constructing a 90% confidence
interval for the proportion of all Americans...
A newsgroup is interested in constructing a 90% confidence
interval for the proportion of all Americans who are in favor of a
new Green initiative. Of the 577 randomly selected Americans
surveyed, 392 were in favor of the initiative. Round answers to 2
decimal places where possible.
a. With 90% confidence the proportion of all Americans who
favor the new Green initiative is between and .
b. If many groups of 577 randomly selected Americans were
surveyed, then a different confidence interval would be produced
from each group. About percent of these confidence intervals will
contain the true population proportion of Americans who favor the
Green initiative and about percent will not contain the true
population proportion.