The shear strength of each of ten test spot welds is determined, yielding the following data (psi): 367 389 375 377 384 388 409 362 358 415 Suppose we decide to examine another test spot weld. Let X = shear strength of the weld. Use the given data to obtain the mle of P(X ≤ 400). [Hint: P(X ≤ 400) = ((400 -μ)/o).] (Round your answer to four decimal places.)
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![The shear strength of each of ten test spot welds is determined, yielding the following data (psi):
375 377 384 388 409 362 358 415
367 389
Suppose we decide to examine another test spot weld. Let X = shear strength of the weld. Use the given data to obtain the mle of P(X ≤400). [Hint: P(X ≤400) = ((400 -μ)/o).] (Round your answer to four decimal
places.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F223b9866-d226-4984-967c-d26b057ee9a7%2F347886e1-f6b5-46f6-9292-fc00d7e29755%2Fwehznw_processed.png&w=3840&q=75)
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- A mixture of pulverized fuel ash and Portland cement to be used for grouting should have a compressive strength of more than 1,300 KN/m?. The mixture will not be used unless experimental evidence indicates conclusively that the strength specification has been met. Suppose compressive strength for specimens of this mixture is normally distributed vrith o = 63. Let u denote the true average compressive strength.In last week's assignment, you calculated mean free path, total absorption, and reverberation time for a room that is 4 m long, 7 m wide, and has a ceiling height of 3 m. The floor is hardwood, = .15 at 500 Hz. The walls are gypsum wallboard (GWB), = .30 at 500 Hz. The ceiling is acoustic ceiling tile (ACT), = .95 at 500 Hz. 3) f a person speaking produces a sound power level of 70 dB, how much sound pressure level would you expect at a distance of 3 m?The table below shows the results from the specific gravity (S.G.) test performed in a soil laboratory including twenty samples of sand. Determine the Coefficient of Quartile Variation.
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