Find the 90th percentile for the sample mean excess time for samples of 75 customers who exceed their basic contract cime allowances.

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Q: P(-0.92 </=Z </= 1.87)= _____ O 75.09% O 70.95% O 79.50% O 79.05% P(z=0 to z=1.93)=____ O 47.32% O…

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Q: Normal distribution. 2 6. X(a-0.01,v-2) = -Xa=0.99,v=2)

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A: given data, CI=0.95x=89n=1628P^=xn=891628=0.0547α=1-0.95=0.05Zc=Zα/2     =Z0.05/2     =Z0.0250…

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Q: The function E(t) 3854 - 77.4t gives the surface elevation (in feet above sea level) of Lake Powell…

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