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Degger [83]
3 years ago
5

Question 8 (1 point)

Mathematics
1 answer:
creativ13 [48]3 years ago
4 0
I believe x=3.
4x-3(-2)=18
4x=12
x=3
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An engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 130lb and 1
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Answer: 0.4758

Step-by-step explanation:

Given : Mean : \mu=137\text{ lb}

Standard deviation : \sigma =28.9\text{ lb}

Also, the new population of pilots has normally distributed .

The formula to calculate the z-score :-

z=\dfrac{x-\mu}{\sigma}

For x=130 lb .

z=\dfrac{130-137}{28.9}=-0.2422145\approx-0.24

For x=171lb.

z=\dfrac{171-137}{28.9}=1.1764705\approx1.18

The p-value =P(-0.24

=0.8809999-0.4051651=0.4758348\approx0.4758348\approx0.4758

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ser-zykov [4K]

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Step-by-step explanation:

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TRUE

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Answer:

D

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