[Step-by-Step] A test of sobriety involves measuring the subject’s motor skills. Twenty randomly selected sober subjects take the test and produce a mean score
Question: A test of sobriety involves measuring the subject’s motor skills. Twenty randomly selected sober subjects take the test and produce a mean score of 41.0 with a standard deviation of 3.7. At the 0.01 level of significance, test the claim that the true mean score for all sober subjects is equal to 35.0. You may assume that sobriety is normally distributed. (5 points)
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