Question

y Nobes Ask Your Levelness of concrete slabs. Geotechnical engineers use water level-manometer-surveys to assess the level ess o, ty constructed concrete slabs. Ewatots are typically measured at eight points on the slab; of interest is the maximum cimerenta! between elevations. The Journal of Pen mence or constructed fac t es Feb. 2005) published an·ticle on the leven ess of slabs n Caifomia residentel developments Elevation dets collected on over 1,30s concrete siabs before tensioning revesied thet the maximum differertial hes a mean of 53 inch and a standerd deviation of Ssigma-193 inch. Consider a sample of n 50 slabs selected from those surveyed, and let x represent the mean of the sample Give anewer to 4 decimal places.) Find Pix > 58) 3667 Source: McClave and Sincich (2009), Statistics (1 1th Edition), Prentice Hal

Answer 1

n 50 0.58-o、53 0-o336