Mathematics, 06.05.2021 01:00 khalilh1206
The person diameter of a certain hand pump is 0.7 inch. The manager determines that the diameters are normally distributed, with a mean of 0.7 inch and a standard deviation of 0.005 inch. After recalibrating the production machine, the manager randomly selects 26 pistons and determines the standard deviation is 0.0036 inch. Is there a significant evidence for the manager to conclude that the standard deviation has decreased
Answers: 3
Mathematics, 21.06.2019 19:20
Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.
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Mathematics, 21.06.2019 21:00
Consider the polynomials given below. p(x) = x4 + 3x3 + 2x2 β x + 2 q(x) = (x3 + 2x2 + 3)(x2 β 2) determine the operation that results in the simplified expression below. 35 + x4 β 573 - 3x2 + x - 8 a. p+q b. pq c.q-p d. p-q
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Mathematics, 21.06.2019 21:00
Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x
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Mathematics, 21.06.2019 22:20
The coordinates of vortex aβ are (8,4) (-4,2) (4,-,4) the coordinates of vortex bβ are (6,6)(12,-,12)(12,12) the coordinates of vortex cβ are(-2,,12)(4,12)(12,-4)
Answers: 3
The person diameter of a certain hand pump is 0.7 inch. The manager determines that the diameters ar...
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