Mathematics, 31.03.2020 03:43 emwemily
Question 1.05 It is known from past experience that the life of traffic light bulbs is normally distributed with a standard deviation of 250 hours. In a study, if you wanted the total width of the two-sided confidence interval on mean to be 120 hours at 90% confidence, how many light bulbs should be selected for the study
Answers: 3
Mathematics, 21.06.2019 15:00, ejcastilllo
Let the mean of the population be 38 instances of from 6" - 9" hatchings per nest, and let the standard deviation of the mean be 3. what sample mean would have a confidence level of 95% or a 2.5% margin of error?
Answers: 1
Mathematics, 21.06.2019 22:00, stricklandashley43
1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.
Answers: 2
Question 1.05 It is known from past experience that the life of traffic light bulbs is normally dist...
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