Mathematics, 06.08.2019 21:30 neariah24
Atest to determine whether a certain antibody is present is 99.6% effective. this means that the test will accurately come back negative if the antibody is not present (in the test subject) 99.6% of the time. the probability of a test coming back positive when the antibody is not present (a false positive) is 0.004. suppose the test is given to four randomly selected people who do not have the antibody. (a) what is the probability that the test comes back negative for all four people? (b) what is the probability that the test comes back positive for at least one of the four people?
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How to solve a simultaneous equation involved with fractions?
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Mathematics, 21.06.2019 19:40
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
Mathematics, 21.06.2019 20:10
In the diagram, points d and e are marked by drawing arcs of equal size centered at b such that the arcs intersect ba and bc. then, intersecting arcs of equal size are drawn centered at points d and e. point p is located at the intersection of these arcs. based on this construction, m , and m
Answers: 1
Atest to determine whether a certain antibody is present is 99.6% effective. this means that the tes...
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