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Mathematics, 28.12.2020 18:00 Lujfl

On the basis of a survey of 25 random typists, a confidence interval for the mean time needed to complete typing a page was (5.588; 6.412). Knowing that the distribution of the time needed to type a page is normal, and the sample standard deviation was equal to 1, determine the confidence level used for the calculations

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On the basis of a survey of 25 random typists, a confidence interval for the mean time needed to com...
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