The efficiency for a steel specimen immersed in a phosphating tank is the weight of the phosphate coating divided by the metal loss (both in mg/ft2). An article gave the accompanying data on tank temperature (x) and efficiency ratio (y).Temp. 173y =RatioRatio175 1760.92 1.25 1.44Temp. 183 1831.37 1.62Temp. 185 185RatioUSE SALT1831.591.85 2.00 2.581771.05 0.97177183 1832.17185 1872.131871781.141840.861881791.06180184 1851891.741.53 0.881.39 2.42 2.94 1.831913.14(a) Determine the equation of the estimated regression line. (Round all numerical values to four decimal places.)(b) Calculate a point estimate for true average efficiency ratio when tank temperature is 185. (Round your answer to four decimal places.)(c) Calculate the values of the residuals from the least squares line for the four observations for which temperature is 185. (Round your answers to two decimal places.)(185, 0.88)(185, 1.85)(185, 2.00)(185, 2.58)

a) we need to find regression equation for the given data. Given X is the Temperature and Y-…

Answered: The efficiency for a steel specimen…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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When purifying drinking water you can use a so-called membrane filtration. In an experiment one wishes to examine the relationship between the pressure drop across a membrane and the flux (flow per area) through the membrane. We observe the following 10 related values of pressure (x) and flux (y): 1 2 3 4 5 7 8. 9 10 Pressure (x) 1.02 2.08 2.89 4.01 5.32 5.83 7.26 7.96 | 9.11 9.99 Flux (y) 1.15 0.85 1.56 1.72 4.32 5.07 5.00 5.31 6.17 7.04 (a) Fit the least square regression equation to predict the flux (flow per area) through the pressure drop across a membrane. (b) Find the estimated flux when the pressure drop across a membrane is 4.50. (c) Calculate the coefficient of correlation. Interpret your result. (d) Given Sxx = 83.25961 and Se = 0.64460653. Test, at the 0.01 level of significance, whether there is linear relationship between the pressure drop across a membrane and the flux (flow per area) through the membrane. (e) Construct a 98% confidence interval for the mean flux for the…
Police Q.3//_Police are 30 feet from the side of the road. Their radar sees your car approaching at 80 ft/sec) when your car is 50 feet away from the radar gun. The speed limit is to be ( 95 ft/sec). Are you speeding? 30 D-50 Road 0.4// In a measurement of a cylindrical shaft , an error in its diameter of 3% was made .Find the percentage error in its weight. 0.5/| A factory intend to manufactures an open-topped can with a volume (500 cm).What leylinder ) to use the least materials for manufacturing this can. hotinder are the ratio of ( 0.6LSketeh the granh +he fellouing f.notiong hel olloritionl neinta tion
3 The mass of a uniform sphere varies directly with the cube of its radius. A certain sphere has radius 3cm and mass 113.1 g. Find the mass of another sphere with radius 5 cm.
Water is flowing into a tub for washing clothes. The table shows the rate at which the water flows, in gallons per minute. The tub initially had five gallons of water in it before the faucet was turned on. t, in minutes 0 0.5 1 1.5 2 2.5 3 3.5 Flow rate, in 0.5 1 1.2 1.4 1.7 2 gal/min 2.1 3 Use the information in this problem to determine the amount of water in the tub after the first 3 minutes have passed. a) Calculate the amount of water in the tub using left approximating rectangles. b) Calculate the amount of water in the tub using right approximating rectangles. c) Use the two answers above to determine the most accurate answer you can.
Below are the discharge values at a watershed outlet. If direct runoff starts at time = 3 hr and the straight line method is used to separate base flow, then the volume of direct runoff during the first 6 hours in cubic meters is: Time (hr) Discharge (m/s) 0. 7 4. 9. 11 6. 17 12 25 15 32 18 30 21 24 24 17 27 11 30 7. 33 4. 36 2. Select one: O a 37800 Ob. 97200 Oc.59400 O d. zero O e None of the above
The k-value for a gas is 1.2. What is the volume of the gas in terms of the pressure it exerts? OV = 1.2 P OV= 1.2 – P OV = oV=

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