A newspaper conducted a statewide survey concerning the 2008 race for state senator. The newspaper took a random sample (assume it is an SRS) of 1200 registered voters and found that 620 would vote for the
Republican candidate. Let p represent the proportion of registered voters in the state that would vote for the
Republican candidate.
Use Scenario 8-2. A 90% confidence interval for p is
a. 0.517 +0.014.
b. 0.517 +0.022.
c. 0.517 + 0.024.
d. 0.517 +0.028.
e. 0.517 +0.249.
O a
Ob.
Ос.
O d.
Oе.