One of the questions on a survey of 1000 adults asked if today’s children will be better offthan their parents (Rasmussen Reports website, October 26, 2012). Representative dataare shown in the DATAfile named ChildOutlook. A response of Yes indicates that the adultsurveyed did think today’s children will be better off than their parents. A response of Noindicates that the adult surveyed did not think today’s children will be better off than theirparents. A response of Not Sure was given by 23% of the adults surveyed.a. What is the point estimate of the proportion of the population of adults who do thinkthat today’s children will be better off than their parents?b. At 95% confidence, what is the margin of error?c. What is the 95% confidence interval for the proportion of adults who do think thattoday’s children will be better off than their parents?d. What is the 95% confidence interval for the proportion of adults who do not thinkthat today’s children will be better off than their parents?
One of the questions on a survey of 1000 adults asked if today’s children will be better off
than their parents (Rasmussen Reports website, October 26, 2012). Representative data
are shown in the DATAfile named ChildOutlook. A response of Yes indicates that the adult
surveyed did think today’s children will be better off than their parents. A response of No
indicates that the adult surveyed did not think today’s children will be better off than their
parents. A response of Not Sure was given by 23% of the adults surveyed.
a. What is the point estimate of the proportion of the population of adults who do think
that today’s children will be better off than their parents?
b. At 95% confidence, what is the margin of error?
c. What is the 95% confidence interval for the proportion of adults who do think that
today’s children will be better off than their parents?
d. What is the 95% confidence interval for the proportion of adults who do not think
that today’s children will be better off than their parents?
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