Mathematics, 19.05.2020 18:07 ella3714
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 973 boards were produced the week before the reconfiguration was implemented, and 254 of these were defective. A total of 874 boards were produced the week after reconfiguration, and 95 of these were defective. Construct a 90% confidence interval for the decrease in the defective rate after the reconfiguration.
Answers: 2
Mathematics, 21.06.2019 15:20
Use the x-intercept method to find all real solutions of the equation. -9x^3-7x^2-96x+36=3x^3+x^2-3x+8
Answers: 1
Mathematics, 21.06.2019 18:00
Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.
Answers: 1
Mathematics, 21.06.2019 18:30
The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.
Answers: 3
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