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    Hypothesis Testing Focused on Significance Levels

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    Surveys have been widely used by politicians around the world as a way of monitoring the opinions of the electorate. Six months ago, a survey was undertaken to determine the degree of support for national party leader. Of a sample of 1,100, 56% indicated that they would vote for this politician. This month, another survey of 800 voters revealed that 46% now support the leader.
    Question: At the 5% significance level, can we infer that the national leader's popularity has decreased?

    © BrainMass Inc. brainmass.com June 3, 2020, 6:22 pm ad1c9bdddf
    https://brainmass.com/statistics/hypothesis-testing/hypothesis-testing-focused-on-significance-levels-57312

    Solution Summary

    This solution provides a detailed, step by step response which is contained in a Word document. All the necessary formulas, calculations and criteria needed in order to reject or fail to reject the hypothesis has been explained.

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