A granular soil has an angle of friction with a mean value of 40° and a coefficient of variation of 2.5%. Determine the corresponding mean and standard deviations values for the bearing capacity coefficient, N.,.
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- 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.The horizontal distance between point A and point B was measured repeatedly giving the following results. Observations are in feet (5 points). 17.6612, 17.6612, 17.6593, 17.6632, 17.6642, 17.6629, 17.6527, 17.6641, 17.6534, 17.6519, 17.6630, 17.6663, 17.6590, 17.6605, 17.6586 A) Compute the mean and the standard deviation of the observations. B) Remove 3 measurements with highest error from the above observations and compute the mean and the standard deviation againH . Use the LSRL to calculate and interpret the residual for a speed of 70 km/h. i . Using stapplet place to residual part of your LSRL below 
- A.) Determine the net change between the given values of the variable B.) Determine the average rate of change between the given values of the variableWhat is the LOD if the deviation of the blank response is 0.001 and has the equation of the line y=0.285x+0.020?A surface reinforced concrete strip foundation, unit weight 24 kN/m³, is 2 m wide, 0.5 m thick and will be subjected to a uniform normal pressure, p, of mean value 500 kN/m² and coefficient of variation, Vp, of 6%. The soil is cohesionless. Unit weight: mean = 18 kN/m³; V₁ = 5% Angle of friction: mean = 40°; V₂ = 2.5% Determine the reliability index against bearing capacity failure.
- 3. Fit a curve of the type y = bx" to the following data: (2, 27.8), (3, 62.1), (4, 110), and (5, 161). Round off to 4 decimals. (30 pts)"Durable press" cotton fabrics are treated to improve their recovery from wrinkles after washing. "Wrinkle recovery angle" measures how well a fabric recovers from wrinkles. Higher is better. Here are data on the wrinkle recovery angle (in degrees) for the same fabric specimens discussed in the previous exercise: Permafresh Hylite 156 148 152 197 151 187 122 142 133 A manufacturer wants to know how large is the difference in mean wrinkle recovery angle. a. The mean and the standard deviation for the Permafresh are: Round to 3 decimal places. Round to 3 decimal places. b. The mean and the standard deviation for the Hylite are: Round to 3 decimal places. Round to 3 decimal places. c. The standard error is: SE = Round to 3 decimal places. The critical value from the distribution for a confidence interval of 99.8% is: t= Use degrees of freedom of 3. Use Technology. Round to 3 decimal places. d. Using the the answer from above (all rounded to 3 decimal places), calculate by hand a 99.8%…Calculate the % approximate error relative to the true value of the area of a trapezoidal lot whose longer base is 12 m longer than the shorter base which is 10 m , and height of 20 m. There is no height deviation while each base is deviated 0.05 m below the value of each base.
- "Durable press" cotton fabrics are treated to improve their recovery from wrinkles after washing. "Wrinkle recovery angle" measures how well a fabric recovers from wrinkles. Higher is better. Here are data on the wrinkle recovery angle (in degrees) for two types of treated fabrics: Permafresh Hylite 10 15 12 18 15 19 11 17 13 14 A manufacturer wants to know how large is the difference in mean wrinkle recovery angle. Give a 90% confidence interval for the difference in mean wrinkle recovery angle: [three decimal accuracy] [three decimal accuracy]c) The relationship between stress (o), force (F) and area (A) acting on an object is given as F O = A UNIVERSITI TEKNOLOGI MALAYSIA Find the maximum percentage error in calculating stress, if the max- imum percentage error in calculating force and area are 2% and 1% respectively.Suppose an experiment were conducted on the stretching of a spring as a function of the force applied to the spring yielding the data in the following table Time (s) Position (m) 0.0 0.0 2.0 1.4 4.0 2.8 6.0 4.2 8.0 5.6 10.0 7.0 12.0 8.4 plot a graph of Position vs. Time, then draw the theoretical curve, Draw the best straight line you can through the origin and the plotted points. Try to leave about as many points above and below the line. This is the line of best fit. Find the slope of the best fit line on your graph. Calculate the uncertainty of your line of best fit. Statistically, it is accepted to subtract the slope of the MAX line and the slope of the MIN line and divide by 2. This will give the uncertainty of the slope of the line of best fit.
