SOLUTION: It has been claimed that at UCLA at least 40% of the students live on campus. In a random sample of 250 students, 90 were found to live on campus. Find the test value at α = .

Question 1171215: It has been claimed that at UCLA at least 40% of the students live on campus. In a random sample of 250 students, 90 were found to live on campus. Find the test value at
α = .01?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
z=(p hat-p)/sqrt(p(1-p)/n)
=(0.36-0.40)/sqrt(0.4*0.6/250)
=-0.04/0.0310
z=-1.29
this has a p-value for a 1 way test of 0.098, twice that for a two way test.
With an alpha of 0.01 P{reject Ho|Ho true} fail to reject Ho.
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