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The Acculturation Rating Scale for Mexican Americans (ARSMA) is a psychological test that measures the degree to which Mexican Americans have adopted Mexican/Spanish versus Anglo/English culture. The distribution of ARSMA scores in a population used to develop the test was approximately normal, with mean 3.0 and standard deviation 0.8. A further study gave ARSMA to 42 first-generation Mexican Americans. The mean of their scores was =2.13. Assuming the standard deviation for the
first-generation population is also = .8, give a 95% confidence interval for the mea

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The Acculturation Rating Scale for Mexican Americans (ARSMA) is a psychological test that measures the degree to which Mexican Americans have adopted Mexican/Spanish versus Anglo/English culture. The distribution of ARSMA scores in a population used to develop the test was approximately normal, with mean 3.0 and standard deviation 0.8. A further study gave ARSMA to 42 first-generation Mexican Americans. The mean of their scores was ￼ ￼ ￼ ￼ ￼ ￼ ￼ =2.13. Assuming the standard deviation for the
first-generation population is also = .8, give a 95% confidence interval for the mea