SOLUTION: In testing H0: p = .5 against H1: p > .5, 400 voters were surveyed and 216 reported they were in favor of the proposal to widen I-485. Find the value of the test statistic to deter

Algebra ->  Probability-and-statistics -> SOLUTION: In testing H0: p = .5 against H1: p > .5, 400 voters were surveyed and 216 reported they were in favor of the proposal to widen I-485. Find the value of the test statistic to deter      Log On


   

Question 929523: In testing H0: p = .5 against H1: p > .5, 400 voters were surveyed and 216 reported they were in favor of the proposal to widen I-485. Find the value of the test statistic to determine if a majority of the voters are in favor of the proposal to widen I-485.





A 1.6

B -1.6

C 0.8

D -0.8

E 0.04
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
H0: p = .5
H1: p > .5
...........
Sample p = 216/400 = .54
......
z(.54) = blue%28.54+-+.50%29%2Fsqrt%28.50%2A.50%2F400%29%29 = .04 /.025 = 1.6
A.