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Problem N5628 probability theory confidence interval
5628. A survey of 400 workers of one enterprise was carried out and it was found that the average wage of workers is 190 rubles. Determine with reliability 0.9544 the possible limits of workers´ wages, considering the distribution of workers´ wages as normal with a standard deviation of 60 rubles.
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
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Discount for regular customers! If the total of your purchases from the seller
Massimo86
exceeds: