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A SRS of 500 voters finds that 48% plan to vote for Holden. Holden’s political support...

A SRS of 500 voters finds that 48% plan to vote for Holden. Holden’s political support staff wants to know if this is strong evidence that Holden no longer has a majority. Which of the following gives the correct hypotheses? Explain.

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Answer #1

SRS of 500 voters finds that 48% plan to vote for Holden.

Sample size n=500

Sample proportion=0.48

Holden's political support staff wants to know if this is strong evidence that Holden no longer has majority.

It means Holden staff wants to claim true proportion of voters is less than 50%.

P denotes proportion of voters who vote for Holden

Null hypothesis

Alternate Hypothesis

We will use one proportion Z test.

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