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Suppose the meantime that visitors stay at a museum is 94.2 minutes with a standard deviation of 15.5 minutes the standard error of mean is

Suppose the meantime that visitors stay at a museum is 94.2 minutes with a standard deviation of 15.5 minutes the standard error of mean is 3.1. A Random sample of 25 of the times is chosen. What interval captures 95% of the means for random samples of 25 scores

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