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 560 randomly selected Americans surveyed, 356 were in favor of the initiative. a. With 90% confidence the proportion of all Americans who favor the new Green initiative is between and . b. If many groups of 560 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 560 randomly selected Americans surveyed, 356 were in favor of the initiative.
a. With 90% confidence the proportion of all Americans who favor the new Green initiative is between and .
b. If many groups of 560 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.
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