8. The live, dead and snow loads on a structure each follow a normal distribution, with E(L)=2kN/m2, E(D) = 1.5 kN/m2, and E(S) = 3 kN/m2. Coefficient of variation for live, dead and snow being 20%, 10% and 30%. Assume the covariance between dead and live loads to be 0.2 kN/m2. Determine the 95th percentile of the combined loading from live, dead and snow loads.
8. The live, dead and snow loads on a structure each follow a normal distribution, with...
1 Diastolic blood pressures are assumed to follow a normal distribution with a mean of 87 and a standard deviation of 10. a. What proportion of people have diastolic blood pressure less than 90? n have diastolic blood pressur c. If someone has a diastolic blood pressure of 100, what percentile is he/she in? 2. Suppose that the average Lehman College student reports using social media like Facebook and Snapchat an average of 6 hours a week, with a standard...
answer the questions based on the informations on the 3 pictures please: What are the essential responsibilities of a structural designer or engineer in designing a structure? What factors would you consider and why when planning the design of a building structure? You are the project team leader for the design of a single family house in southwest Houston area. Discuss the types of structural loads you think are important and explain why. d) Thermal load changes in perature cause...
Question I.5 Figure 1.5 shows a frame with loads at A and D. Select the closest value for the magnitude of the total reaction at B. Assume the weight of the frame is zero. 40 kN VE 96.2 kN (a) (Ь -40 kN 5 m (c) -87.5 kN 30 kN (d) 57 kN 4m ao 1 m (e) 50 kN Figure L.5 Low mass frame Question I.6 In the shear and bending moment equations for beams, which of the following...
TEST 1: ANSWERS INTS EACH). This section takes around 5 minutes. Name Spring 2019 8) A researcher wants to determine whether female teachers give higher or lower grades, on average, then male teachers. She picks a random sample by picking a random sample of schools, in the schools picked, picking a random sample of departments, and in the departments picked, picking a random sample of teachers. What kind of sampling was performed? d) voluntary response e) cluster b) stratified Random...
photos for each question are all in a row (1 point) In the following questions, use the normal distribution to find a confidence interval for a difference in proportions pu - P2 given the relevant sample results. Give the best point estimate for p. - P2, the margin of error, and the confidence interval. Assume the results come from random samples. Give your answers to 4 decimal places. 300. Use 1. A 80% interval for pı - P2 given that...
summarizr the followung info and write them in your own words and break them into different key points. 6.5 Metering Chamber: 6.5.1 The minimum size of the metering box is governed by the metering area required to obtain a representative test area for the specimen (see 7.2) and for maintenance of reasonable test accuracy. For example, for specimens incorporating air spaces or stud spaces, the metering area shall span an integral number of spaces (see 5.5). The depth of...
summatize the following info and break them into differeng key points. write them in yojr own words apartus 6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...