ROR IN MEASUREMENT 5. Distance is measured by pacing as: 45.7, 44.1, 40.6, 46.8,48.1, and 45.0...
A distance between two points is measured 5 times. Each measurement is independent and made with the same precision. The sample mean () and standard deviation (s) are calculated from the measurements and given as follows: Construct the confidence interval for the population variance at a 90% confidence level. Mind units
QUESTION 1 10 points Save Answer A sag error is introduced when not enough tension is applied to a steel tape laid directly on a road surface? True O False QUESTION 2 10 points Save Answer Give (2) examples of when pacing would be an acceptable measurement meth T T TArial 3 (12pt) Path: p QUESTION 3 10 points Save Answer The slope distance between two points is 37.277 ft. The slope angle is 1.767°. What is the horizontal distance?...
In a test of braking performance, a tire manufacturer measured the stopping distance for one of its tire models. On a test track, 10 different cars made repeated stops from 60 miles per hour. The test was run on both dry and wet pavement, with the accompanying results. Complete parts a) and b) below. EClick the icon to view the table of stopping distances. a) Construct a 95% confidence interval for the mean dry pavement stopping distance. Be sure to...
A 5 degree curve (measured at the centerline of the inside lane) is being designed for a highway with a design speed of 60 mph. What is the closest any roadside object may be placed to the centerline of the inside lane of the roadway while maintaining adequate stopping sight distance? Assume lane widths are 12 feet. 3) A 520-ft long equal tangent crest vertical curve connects tangents that intersect at station 340+00 and elevation 1325 ft. The initial grade...
So we went into lab and measured the time it took 5 beads to fall 1 meter. We figure that we were able to measure the distance to within 1 mm, and our stopwatch reads to one hundredth of a second. a. What is the uncertainty we would predict for the velocity calculation. (assume t 2 sec) b. What is the standard deviation of our data if the following values were obtained [2.1,2.0,2.3,2.1,2.4) seconds Based on the data alone, what...
Objective To determine the force generated by a jet of water striking on a surface Description of apparatus The supply is led to a vertical pipe terminating in a tapered nozzle. This produces a jet of water which impinges on the vane in the form of a Flat Plate, Hemispherical Cup, Conical Plate or 30° Angled Plate. The nozzle and vane are contained within a transparent cylinder; at the base of the cylinder there is an outlet by which the...
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...