Question

In: Math

show all work 2) A semiconductor manufacturer produces printed circuit boards that are sampled to determine...

show all work

2) A semiconductor manufacturer produces printed circuit boards that are sampled to determine the thickness of their copper plating. The following statements create a data set named Trans, which contains the plating thicknesses (Thick) of 50 boards:

3.412

3.45

3.551

3.451

3.60

3.462

3.586

3.645

3.252

3.62

3.606

3.634

3.852

3.56

3.342

3.341

3.444

3.774

3.632

3.199

3.71

3.654

3.723

3.981

3.934

3.708

3.934

3.315

3.762

3.223

3.469

3.481

3.515

3.535

3.46

3.575

3.488

3.515

3.484

3.482

3.517

3.483

3.467

3.502

3.471

3.516

3.474

3.5

3.466

a. Using R find the mean, median, mode, range, variance and standard deviation of the data. Attach your output from R.

b. Based on the results in part a, construct the intervals and for the data set. Be sure to show your interval below. What percentage of the measurements for the data set falls in each interval? Compare the intervals , and . Explain why the results are different.

Solutions

Expert Solution

milcah answered 9 months ago

Next > < Previous

Related Solutions

A semiconductor manufacturer produces printed circuit boards that are sampled to determine the thickness of their...

A semiconductor manufacturer produces printed circuit boards that are sampled to determine the thickness of their copper plating. The following statements create a data set named Trans, which contains the plating thicknesses (Thick) of 50 boards: 3.412 3.45 3.551 3.451 3.60 3.462 3.586 3.645 3.252 3.62 3.606 3.634 3.852 3.56 3.342 3.341 3.444 3.774 3.632 3.199 3.71 3.654 3.723 3.981 3.934 3.708 3.934 3.315 3.762 3.223 3.469 3.481 3.515 3.535 3.46 3.575 3.488 3.515 3.484 3.482 3.517 3.483 3.467 3.467...

All printed circuit boards (PCBs) that are manufactured at a certain plant are inspected. An analysis...

All printed circuit boards (PCBs) that are manufactured at a certain plant are inspected. An analysis of the company’s records indicates that 22% are flawed in some way. Of those that are flawed, 84% are reparable and the rest must be discarded. If a newly produced PCB is randomly selected, what is the probability that it does not have to be discarded? Please Solve Manually.

A manufacturer of printed circuit boards is considering purchasing a new surface mount technology component placement...

A manufacturer of printed circuit boards is considering purchasing a new surface mount technology component placement system. Two machines are under consideration and the following information is prepared for the economic evaluation. If the company's after-tax MARR of 12% per year and MACRS with a 7-year recovery period is used, compute the after-tax cash flow(ATCF) at the end of year 8 for the Machine Q. Assume an effective tax of 35% per year. Machine Q R First costs $392,248 $395,000...

In the production of printed circuit boards, errors in the alignment of electrical connections are a...

In the production of printed circuit boards, errors in the alignment of electrical connections are a source of scrap. The accompanying table shows the registration error and the temperature used in the production of circuit boards in an experiment in which higher cost material was used. Registration Error Temperature −10.7 278 3.7 320 3.2 299 10.6 321 −13.8 271 6.2 293 13.7 324 A. Fit a quadratic regression model and state the quadratic regression. B. Perform a residual analysis on...

Manchester Technology, Inc. manufactures several different types of printed circuit boards; however, two of the boards...

Manchester Technology, Inc. manufactures several different types of printed circuit boards; however, two of the boards account for the majority of the company’s sales. The first of these boards, a television circuit board, has been a standard in the industry for several years. The market for this type of board is competitive and price-sensitive. Manchester plans to sell 79,000 of the TV boards in 20x1 at a price of $450 per unit. The second high-volume product, a personal computer circuit...

Manchester Technology, Inc. manufactures several different types of printed circuit boards; however, two of the boards...

Q1/ A batch of printed circuit cards is populated with semiconductor chips with 25% are defective...

Q1/ A batch of printed circuit cards is populated with semiconductor chips with 25% are defective cards. Five of these are selected randomly for function testing.The random variable X has a binmial distribution. Find the probability that we get exactly one defective card 0.564 0.395 0.764 0.987 ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــ Q2/ A batch of printed circuit cards is populated with semiconductor chips with 45% are defective cards. Five of these are selected randomly for function testing . The random variable X has...

In the production of printed circuit boards for the electronics industry, a 0.60-mm layer of copper...

In the production of printed circuit boards for the electronics industry, a 0.60-mm layer of copper is laminated onto an insulating plastic board. Next, a circuit pattern made of a chemically resistant polymer is printed on board. The unwanted copper is removed by chemical etching, and the protective polymer is finally removed by solvents. One etching reaction is: Cu(NH3)4Cl2(aq) + 4NH3(aq) + Cu(s)  2Cu(NH3)4Cl(aq) A plant needs to manufacture 10,000 printed circuit boards, each 8.0 x 16.0 cm in...

An on-line production of printed-circuit boards (PCBs) involves ten successive sequences (i = 1, 2, 3,...

An on-line production of printed-circuit boards (PCBs) involves ten successive sequences (i = 1, 2, 3, …, 10) of component-placement/assembly on the board. In a quality-control effort, the board is tested for its integrity in each of ten successive assembly-tasks. It is presumed that the reliability of final, completed PCB depends on possible, failure-proneness associated with each (successive) assembly-task involved. Table given below shows the number of PCBs (ni) per successive batch tested. Also shown in the table, is the...

The following represents the number of solder defects on 24 samples on ve printed circuit boards;...

The following represents the number of solder defects on 24 samples on ve printed circuit boards; 7,6,8,10,24,6,5,4,8,11,15,8,4,15,11,12,8,6,5,9,7,14,8,21. (a) Using all the data, compute trial control limits for a U control chart, construct the chart and plot the data. (b) Can we conclude that the process is in control using a U chart? If not, assume assignable causes can be found, list points and revise the control limits.

Subjects