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 604 randomly selected Americans surveyed, 442 were in favor of the initiative. Round answers to 4 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 604 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.
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 604 randomly selected Americans surveyed, 442 were in favor of the initiative. Round answers to 4 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 604 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.
Step by step
Solved in 2 steps with 2 images