Question 13 of 14 (4 points) | Attempt 1 of 1 | View question in a popur 11h 15m Remaining 10.2 Section Exercise 18 (calc)
al.
Satisfied? A 2010 poll asked people of a certain region whether they were satisfied with their financial situation. A total of 342
out of 831 people said they were satisfied. The same question was asked in 2012, and 302 out of 1153 people said they were
satisfied.
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Part: 0/2
Part 1 of 2
(a) Construct a 99% confidence interval for the difference between the proportions of adults who said they were satisfied in
2012 and 2010. Let P, denote the proportion of adults who said they were satisfied in 2010 and let P2 denote the
proportion of adults who said they were satisfied in 2012. Use the TI-84 Plus calculator and round the answers to three
decimal places.
A 99% confidence interval for the difference between the proportions of adults who said they
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