Defective electronics: A team of designers was given the task of reducing the defect rate in the manufacture of a certain printed circuit board. The team decidedto reconfigure the cooling system. A total of 972 boards were produced the week before the reconfiguration was implemented, and 257 of these were defective.A total of 844 boards were produced the week after reconfiguration, and 183 of these were defective.Part: 0 / 2Part 1 of 2(a) Construct a 99.9% confidence interval for the decrease in the defective rate after the reconfiguration. Use tables to find the critical value and roundthe answer to at least three decimal places.A 99.9% confidence interval for the decrease in the defective rate after the reconfiguration is>?d _ 'd> [MacBook AiDIIDD80888F11F9F10F7F8F5F6F3F4

Given: n1= 972 ,x1= 257 n2= 844 ,x2= 183 At 99.9 % confidence level , z score= 3.291 Need to find…

Answered: Defective electronics: A team of…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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• Part 1 Rework problem 20 in section 1 of Chapter 7 of your textbook, about the Brown Brothers Box Company, using the following data. Assume that each lot of 100 shipping boxes requires 135 pounds of heavy-duty liner board, 35 pounds of finish cardboard, and 3.5 hours of labor; that each lot of 600 mailing tubes requires 70 pounds of heavy-duty liner board, 20 pounds of finish cardboard, and 2.5 hours of labor; and that each lot of 100 retail boxes requires 75 pounds of heavy-duty liner board, 70 pounds of finish cardboard, and 5 hours of labor. Assume also that the company has available each day 330 pounds of heavy- duty liner board, 170 pounds of finish cardboard, and 16 hours of labor. Assume also that the profit on each retail box is $0.08, the profit on each mailing tube is $0.01, and the profit on each shipping box is $0.06. How many lots of each type of item should the company produce in order maximize its profit? When you formulate a linear programming problem to solve this…
QUESTION 1 A croissant shop produces two products: bear claws (B) and almond-filled croissants (C). Each bear claw requires 6 ounces of flour, 1 ounce of yeast, and 2 TS of almond paste. An almond-filled croissant requires 3 ounces of flour, 1 ounce of yeast, and 4 TS of almond paste. The company has 6600 ounces of flour, 1400 ounces of yeast, and 4800 TS of almond paste available for today's production run. Bear claw profits are 20 cents each, and almond-filled croissant profits are 30 cents each. What is the optimal daily profit? O $400 O $440 O $380 O $420 QUESTION 2 What combination of x and y will yield the optimum for this problem? Maximize $3x + $15y, subject to (1) 2x + 4y ≤ 12 and (2) 5x + 2y <10 and (3) x, y ≥ 0. O x = 0, y = 0 O x = 0, y = 3 O x = 2, y = 0 O x = 1, y = 5 O none of the above
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QUESTION 28 A research wants to determine if pre-natal exposure to the hormones in birth control pills alters the sex makeup of midshipman fish populations (which are typically half male and half female). Specifically, the researcher wishes to test the hypothesis that exposure to hormones will increase the number of females in the population. The researcher exposes a group of pregnant midshipman fish to birth control hormones and records the sex of the first 16 offspring birthed. They then observe that 14 are female. Use a sign test and a alpha of .05 to test the indicated hypothesis. What is the critical value? Click Save and Submit to save and submit. Click Save All Answers to save all answers. 20°F Mostly s 14 f8 1+ f9 f10 米 2$ 4 & * 8. R Y F H. JK
QUESTION 5 A small assembly plant has 100 employees. Each worker is expected to complete work assignments on time and in such a way that the assembled product will pass a final inspection. On occasions, some of the workers fail to meet the performance standards by completing work late and/or assembling a defective product. At the end of a performance evaluation period, the production manager found that 10 workers had completed work late, 20 workers had assembled a defective product, and 8 workers had both completed work late and assembled a defective product. 1. What is the probability that a worker chosen at random had completed work late? 2. What is the probability that a worker chosen at random had assembled a defective product? 3. What is the probability that a worker chosen at random had completed work late and assembled a defective product? 4. What is the probability that a worker chosen at random had completed work late or assembled a defective product?
2
_) Jane bakes sourdough loaves, which are full of gluten. Unfortunately, John is allergic to gluten and wants to bake gluten-free loaves. John does not have their own “starter” (a mix of yeast, flour, and water that makes a loaf rise in the oven). Jane's starter is 50g of water and 50g of flour with gluten, and a microscopic amount of yeast that we will ignore. Jane gives John 50g of her starter. For John's first loaf, they replace the missing half of their starter with 25 g of gluten-free flour and 25g of water. This means their starter is now 25g of gluten-free flour, 25g of flour with gluten, and 50g of water. Once the yeast in this starter is fully activated, John is ready to make their first loaf. To bake the loaf they mix 50 g (half) of the starter with 225g of gluten-free flour and 225g of water, meaning the loaf is always
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Table 3-4 Assume that Andrea and Paul can switch between producing wheat and producing beef at a constant rate. Minutes Needed to Make 1 Bushel of Wheat Pound of Beef 15 Andrea 30 Paul 15 5 efer to Table 3-4. Which of the following combinations of wheat and beef could Andrea produce in one 8-hour day? O a. 16 bushels of wheat and 32 pounds of beef O b. 9 bushels of wheat and 25 pounds of beef O c. 7 bushels of wheat and 15 pounds of beef O d. 10 bushels of wheat and 13 pounds of beef
Defective electronics: A team of designers was given the task of reducing the defect rate in the manufacture of a certain printed circuit board. The team decided to reconfigure the cooling system. A total of 970 boards were produced the week before the reconfiguration was implemented, and 258 of these were defective. A total of 851 boards were produced the week after reconfiguration, and 171 of these were defective. Part: 0 / 2 Part 1 of 2 (a) Construct a 90% confidence interval for the decrease in the defective rate after the reconfiguration. Use tables to find the critical value and round the answer to at least three decimal places. A 90% confidence interval for the decrease in the defective rate after the reconfiguration is

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