Mathematics, 28.11.2019 05:31 sunny3799
Provided below are summary statistics for independent simple random samples from two populations. preliminary data analyses indicate that the variable under consideration is normally distributed on each population. decide whether use of the pooled t-test and pooled t-interval procedure is reasonable. x overbar 1equals485.6, s 1equals44.3, n 1equals49, x overbar 2equals390.1, s 2equals61.3, n 2equals31.
is use of the pooled t-test and pooled t-interval procedure reasonable or not reasonable?
a. reasonable
b. not reasonable
Answers: 3
Mathematics, 21.06.2019 19:40
Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297
Answers: 1
Mathematics, 22.06.2019 00:30
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Mathematics, 22.06.2019 02:00
Use long division to indentify (12xto the second power+15x-8)divided by 3x
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Mathematics, 22.06.2019 02:30
Ahmed plans to add a rectangular sunroom to his house. the sunroom will have a length of 14 feet and a width of 10 feet, and the construction will cost $40 per square foot. how much more would the sunroom cost if it’s width were increased to 12 feet?
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Provided below are summary statistics for independent simple random samples from two populations. pr...
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