Concept explainers
(a)
To calculate: The point estimate for the proportion of adult Americans aged 18 or older for which the issue of family values is extremely or very important in determining their vote for president.
(b)
To verify: Whether the requirements for constructing a confidence interval for p are satisfied.
(c)
To construct: A 99% confidence interval for the proportion of adult Americans aged 18 or older for which the issue of family values is extremely or very important in determining their vote for president.
(d)
To explain: Whether the proportion of adult Americans is below 70% or not.
(e)
To construct: The 99% confidence interval for the proportion of adult Americans aged 18 or older for which the issue of family values is not extremely or very important in determining their vote for president.
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