A public opinion survey investigated whether a majority of adults supported a tax increase to help fund the local school system. A random sample of 200200200 adults showed that 120120120 of those sampled supported the tax increase. Researchers want to use these results to test H_0:p=0.5H 0
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:p=0.5H, start subscript, 0, end subscript, colon, p, equals, 0, point, 5 versus H_\text{a} : p>0.5H
a
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:p>0.5H, start subscript, start text, a, end text, end subscript, colon, p, is greater than, 0, point, 5, where ppp is the true proportion of adults that support the tax increase.
Which of the following represents the P-value for their test?