In testing the hypothesis that 70% of voters are in favour of tax cuts against t...
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In testing the hypothesis that 70% of voters are in favour of tax cuts against the alternative that more than 70% of voters are in favour of tax cuts, researchers found that 310 out of 407 people surveyed were in favour of tax cuts.
A one-proportion z-test is to be carried out. Determine the z-statistic for the test, correct to two decimal places.
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