Mathematics, 13.03.2020 23:00, Cjohnston742
A quality control inspector must estimate the proportion of defective microcomputer chips coming from two different assembly operations. She knows that, among the chips m the lot to be inspected, 60% are from assembly operation A and 40% are from assembly operation B In a random sample of 100 chips, 38 turn out to be from operation A and 62 from operation B. Among the sampled chips from operation A, six are defective. Among the sampled chips from operation B, ten are defective. Considering only the simple random sample of 100 chips, estimate the proportion of defectives in the lot, and place a bound on the error of estimation. Stratifying the sample, after selection, into chips from operation A and B, estimate the proportion of defectives m the population, and place a bound on the error of estimation. Ignore the fpc in both cases. Which answers do you find more acceptable?
Answers: 3
Mathematics, 21.06.2019 20:00, chantelljenkins2
True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1
Answers: 2
Mathematics, 21.06.2019 21:00, lunnar2003
Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x − 8 y is greater than or equal to negative 5 over 2 times x plus 5 part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points) part b: is the point (5, −8) included in the solution area for the system? justify your answer mathematically. (4 points)
Answers: 3
Mathematics, 21.06.2019 22:30, jakails359
Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?
Answers: 1
A quality control inspector must estimate the proportion of defective microcomputer chips coming fro...
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