. The sti¤ness property of a new material is established by initial testing. The preliminary results show a uniform scatter of data in the range 9 lb/in k  11 lb/in. There is no additional...

. The sti¤ness property of a new material is established by initial testing. The preliminary results show a uniform scatter of data in the range 9 lb/in k  11 lb/in. There is no additional information. Calculate the mean value, standard deviation, coe¢ cient of variation, and the probability that the sti¤ness is greater than 9:5 lb/in. The above spread of data is found to be too large, and so additional testing is carried out. A plot of the data shows the density in Figure 5.32. Calculate the same values as before and draw conclusion