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    Null and Alternative Hypotheses

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    Many law enforcement agencies use voice-stress analysis to help determine whether persons under interrogation are lying. If the sound frequency of a person's voice changes when asked a question, the presumption is that the person is being untruthful. For this situation, state the null and alternative hypotheses in verbal terms, then identify what would constitute a Type 1 error and a Type II error in this situation.

    Explain fully.


    NOTE: Please an Excel spreadsheet for response. Please do not just
    provide the answers but show in complete detail how you arrived at the
    answers, step-by-step, from the beginning to the end of the solution.

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    Solution Preview

    For the given scenario, the hypotheses can be formulated as

    Ho: The voice frequency does not change which means the person is truthful

    Ha: The voice frequency changes, which ...

    Solution Summary

    A Complete, Neat and Step-by-step Solution is provided in the attached file. The solution helps answers questions about null and alternative hypotheses. Detailed explanations are given.