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Based on data from the College Board, assume that SAT scores are normally distributed with a mean of 1518 and a standard deviation of 325. Assume that many samples of size n are taken from a large population of students and the mean SAT score is computed for each sample. If a sample size n is 100, find the mean and standard deviation of the distribution of sample means.
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if n28 barxx-bar47 and s2 construct a confidence interval at a 98 confidence level. assume the data came from a
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