document.write( "Question 841283: Conduct a test to determine whether or not the population proportion of voters in favor of proposal A is greater than 50%. In a random sample of 200 voters, 140 said that they were in favor of this proposal. Compute the test statistic.
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Conduct a test to determine whether or not the population proportion of voters in favor of proposal A is greater than 50%. In a random sample of 200 voters, 140 said that they were in favor of this proposal. Compute the test statistic.
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\n" ); document.write( "Ho: p <= 0.5
\n" ); document.write( "Ha: p > 0.5
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\n" ); document.write( "test proportion: 140/200 = 0.7
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\n" ); document.write( "test stat: z(0.7) = (0.7-0.5)/sqrt[0.5*0.5/200] = 5.66
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\n" ); document.write( "Conclusion: Since the test stat is in the reject interval,
\n" ); document.write( "reject Ho.
\n" ); document.write( "Conclusion: The test supports the conjecture that the proportion
\n" ); document.write( "is greater than 0.5.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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