Grip is applied to produce normal surface forces

Chapter 1, Problem 54

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Grip is applied to produce normal surface forces thatcompress the object being gripped. Examples includetwo people shaking hands, or a nurse squeezing apatients forearm to stop bleeding. The articleInvestigation of Grip Force, Normal Force, ContactArea, Hand Size, and Handle Size for CylindricalHandles (Human Factors, 2008: 734744) includedthe following data on grip strength (N) for a sample of 42individuals: 16 18 18 26 33 41 54 56 66 68 87 91 95 98 106 109 111 118 127 127 135 145 147 149 151 168172 183 189 190 200 210 220 229 230 233 238 244 259294 329 403a. Construct a stem-and-leaf display based on repeatingeach stem value twice, and comment on interestingfeatures.b. Determine the values of the fourths and thefourthspread.c. Construct a boxplot based on the five-number summary,and comment on its features.d. How large or small does an observation have to be toqualify as an outlier? An extreme outlier? Are thereany outliers?e. By how much could the observation 403, currentlythe largest, be decreased without affecting fs?

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