Question 548417: I can't seem to get this at all and would appreciate some help
A political strategist believes that at least 58% of voters in a certain state support his candidate. He then commissions a poll of 1000 voters and 60% of them support his candidate. At α = .05, test the claim.
a) State the hypotheses and identify the claim
b) Find the critical values
c) Compute the test values
d) Make the decision
e) Summarize the results
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! I can't seem to get this at all and would appreciate some help
A political strategist believes that at least 58% of voters in a certain state support his candidate. He then commissions a poll of 1000 voters and 60% of them support his candidate. At α = .05, test the claim.
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Ho: p <= 0.58
Ha: p > 0.58 (claim)
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a) State the hypotheses and identify the claim
b) Find the critical values
CV = 1.645
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c) Compute the test values
z(0.6) = (0.6-0.58)/sqrt[0.58*0.42/1000] = 1.2814
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d) Make the decision
Since the test value is not in the reject interval,
fail to reject Ho.
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e) Summarize the results
The test results do not support the claim.
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Cheers,
Stan H.
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