Question 1079580: Just need help with p value?
A study is made of residents in Phoenix and its suburbs concerning the proportion of residents who subscribe to Sporting News. A random sample of 86 urban residents showed that 11 subscribed, and a random sample of 97 suburban residents showed that 20 subscribed. Does this indicate that a higher proportion of suburban residents subscribe to Sporting News? Use a 1% level of significance.
What is the value of the sample test statistic? (Test the difference p1 − p2. Do not use rounded values. Round your final answer to two decimal places.)
-1.41
Correct: Your answer is correct.
(c) Find (or estimate) the P-value. (Round your answer to four decimal places.)
.1588
Incorrect: Your answer is incorrect.
tHANK YOU!
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! I get 0.1588 with a two way test with the same z-value.
With a one way test, however, which this question asks (not whether they are the same but whether one is higher), I get p=0.0794. One way tests have half the p-value of two way tests, since they are putting all the probability into one side of the curve.
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