Reference no: EM131017296

1. From the pressure data below, make a dot diagram. Mark the location of the mean and standard deviation. (You can use Excel or MATLAB to do this by plotting x-y data where all of the y points are 0. Minitab and R can also do this.)

a. 25 28 29 35 37 37 42 44 45 47 49 56 87 91

2. Using the data from the strength of material tests below, find the mean, median, and standard deviation of the data set. Make the following types of plots.

a. Stem-and-leaf diagram

b. Histogram (bins of your choosing)

c. Box plot

Table 2-2 Compressive Strength of 80 Aluminum-Lithium Alloy Specimens

105	221	183	186	121	181	180	143
97	154	153	174	120	168	167	141
245	228	174	199	181	158	176	110
163	131	154	115	160	208	158	133
207	180	190	193	194	133	156	123
134	178	76	167	184	135	229	146
218	157	101	171	165	172	158	169
199	151	142	163	145	171	148	158
160	175	149	87	160	237	150	135
196	201	200	176	150	170	118	149