A newspaper conducted a statewide survey concerning the 1998 race for state senator. The newspaper took a simple random sample of n=1400 registered voters and found that 720 would vote for the Republican candidate. Let p represent the proportion of registered voters in the state who would vote for the Republican candidate.

We test

H0:p=.50

Ha:p>.50

(a) What is the z-statistic for this test?

(b) What is the P-value of the test?