The local sheriff has staked his campaign for re-election on the claim that that at least 88% of the drivers stopped on Saturday nights for speeding are under the influence of alcohol. A sample of 66 drivers who were stopped for speeding on a Saturday night was taken. Eighty percent of the drivers in the sample were under the influence of alcohol. State the null and alternative hypotheses to test the sheriff’s claim.

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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The local sheriff has staked his campaign for re-election on the claim that that at least 88% of the drivers stopped on Saturday nights for speeding are under the influence of alcohol. A sample of 66 drivers who were stopped for speeding on a Saturday night was taken. Eighty percent of the drivers in the sample were under the influence of alcohol.

State the null and alternative hypotheses to test the sheriff’s claim.

 

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