Mathematics, 04.04.2020 09:22 hsjsjsjdjjd
Two types of plastics are suitable for an electronics component manufacturer to use. The breaking strength of this plastic is important. It is known that the standard deviations of the two types of plastics are the same, with a value of 1.0 psi. From a random sample of 10 and 12 for type 1 and type 2 plastics, respectively, we obtain sample means of 162.5 and 155. The company will not adopt plastic 1 unless its mean breaking strength exceeds that of plastic 2 by at least 10 psi.
(a) Based on the sample information, should it use plastic 1? Use α = 0.05 in reaching a decision. find the P-value.
(b) Calculate a 95% confidence interval on the difference in means. Suppose that the true difference in means is really 12 psi.
(c) Find the power of the test assuming that α = 0.05.
(d) If it is really important to detect a difference of 12 psi, are the sample sizes employed in part (a) adequate, in your opinion?
Answers: 3
Mathematics, 21.06.2019 19:00
What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62
Answers: 2
Mathematics, 22.06.2019 00:00
Multiply and simplify. 2x^2 y^3 z^2 · 4xy^4 x^2 i will mark you brainliest if right. show how you got the answer, !
Answers: 3
Mathematics, 22.06.2019 00:30
How can you find the magnitude of a vector, v = < x,y > , where the horizontal change is x and the vertical change is y?
Answers: 1
Mathematics, 22.06.2019 00:40
Which linear function represents the line given by the point-slope equation y + 1 = –3(x – 5)?
Answers: 1
Two types of plastics are suitable for an electronics component manufacturer to use. The breaking st...
Mathematics, 11.03.2021 06:10
Mathematics, 11.03.2021 06:10
Social Studies, 11.03.2021 06:10
Mathematics, 11.03.2021 06:10
Mathematics, 11.03.2021 06:10
English, 11.03.2021 06:10
Mathematics, 11.03.2021 06:10
Mathematics, 11.03.2021 06:10
Mathematics, 11.03.2021 06:10
History, 11.03.2021 06:10
Social Studies, 11.03.2021 06:10
Mathematics, 11.03.2021 06:10