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Determine the critical value

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A researcher wants to determine whether alcohol increases the amount of motor coordination errors. She selects two samples of 25 participants each. One group receives 5 ounces of alcohol, while the other group receives 5 ounces of water. She then observes the amount of errors that the participants make in a labyrinth. The test statistic was 2.81. What is the critical value? Which type of hypothesis test was used?

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This solution helps provide thorough answers to the following questions: What is the critical value? Which type of hypothesis test was used? Step by step calculations are provided with explanations.

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Problem: A researcher wants to determine whether alcohol increases the amount of motor coordination errors. She selects two samples of 25 participants each. One group receives 5 ounces of alcohol, while the other group receives 5 ounces of water. She then observes the amount of errors that the participants make in a labyrinth. The test ...

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