MATH 3339 - Statistics for the Sciences Test 2

University of Houston MATH 3339 An electrical firm manufactures light bulbs that have a length of life that is approximately normally distributed with a standard deviation of 70 hours. How large a sample is need if we wish to be 99% confident that we will be within 11 hours of the true m...

Updated: Fri, 03 Apr 2026 01:19:15 +0300

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