a. 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 is 0.77.
b. The margin of error at 95% confidence is 0.0246.
c. The 95% confidence interval for the proportion of adults who do think that today's children will be better off than their parents is (0.7454, 0.7946).
d. The 95% confidence interval for the proportion of adults who do not think that today's children will be better off than their parents is (0.2054, 0.2446).
One of the questions on a survey of 1,000 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 WEBfile 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
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 (to 2 decimals)?
b. At 95% confidence, what is the margin of error (to 4 decimals)?
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 (to 4 decimals)?
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 (to 4 decimals)?
1 answer
1 answer