When the 2000 GSS asked subjects variable GRNSOL if they
When the 2000 GSS asked subjects (variable GRNSOL) if they would be willing to accept cuts in their standard of living to protect the environment, 344 of 1170 subjects said yes.
a. Estimate the population proportion who would answer yes.
b. Find the margin of error for a 95% confidence interval for this estimate.
c. Find a 95% confidence interval for that proportion. What do the numbers in this interval represent?
d. State and check the assumptions needed for the interval in part c to be valid.
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