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At ZYZ Company, a custom manufacturer of printed circuit boards, the finished boards are subjected to a final inspection prior to shipment to its customers. As XYZ's quality assurance manager, you are responsible for making a presentation to management on quality problems at the beginning of each month. Your assistant has analyzed the reject memos for all the circuit boards that were rejected during the past month. He has given you a summary statement listing the reference number of the circuit board and the reason for rejection from one of the following categories:
A= Poor electrolyte coverageB=Improper laminationC= Low copper platingD= Plating separationE= Improper etching
For 50 circuit boards that had been rejected last month, the summary statement showed the following:
C B C C D E C C B A D A C C C B C A C D C A C C BA C A C B C C A C A A C C D A C C C E C C A B A C
a. Prepare a tally sheet (or checklist) of the different reasons for rejection.b. Develop a Pareto chart to identify the more significant types of rejection.c. Examine the causes of the most significant type of defect, using a cause-and-effect diagram.
here is a table of rabbit growth population, from years 0 yo 4, year 0 has 100 rabbits, year 1 has 180, year 2 has 325 rabbits, year 3 has 583 rabbits
An oil tank ruptures at time t=0 and oil leaks from the tank at a rate of r(t)=100(e^(-.01t)) liters per minute. How much oil leaks out during the first hour?
The acceleration due to gravity near the surface of Mars is 3.72ms^-2. A rock is thrown straight up from the surface with an initial velocity of 23ms^-2.
Problem on speed.
Population growth rate
In S(5) let pi=(245)(1354)(125). Write pi as a product of disjoint cycles and then answer the following questions. Determine pi^2, pi^5, pi^(-1).
A game consists of rolling a single fair die and pays off as follows: $3 for a 6, $2 for a 5, $1 for a 4 and no payoff otherwise. What is a fair price to pay to play this game?
The family cat is also walking in the backyard. The line segment between the cat and the two trees are always perpindicular. Find the equation of the locus of the cat.
quadratic equations can be solved by graphing using the quadratic formula completing the square and factoring. what are
which decision should the financial manager make?
a ball is dropped from a bridge at an initial height of 70 meters. what is the height of the ball to the nearest tenth of a meter exactly 2 seconds after he realeases the ball? how many seconds after the ball is released will it hit the ground?
find the 90%coinfidence interval for the variance and standard deviation for the time it takes an inspector to check a bus for the safety if a sample of 27 buses ha standard deviation of 6.8 minutes. Assume the variable is nornmally distributed.
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