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Data Set/Description Owner Last edited Size Views
Body Dimensions
NAME: Exploring Relationships in Body Dimensions TYPE: Observational SIZE: 507 Observations, 25 Variables DESCRIPTIVE ABSTRACT: This dataset contains 21 body dimension measurements as well as age, weight, height, and gender on 507 individuals. The 247 men and 260 women were primarily individuals in their twenties and thirties, with a scattering of older men and women, all exercising several hours a week. SOURCE: Measurements were initially taken by the first two authors - Grete Heinz and Louis J. Peterson - at San Jose State University and at the U.S. Naval Postgraduate School in Monterey, California. Later, measurements were taken at dozens of California health and fitness clubs by technicians under the supervision of one of these authors. VARIABLE DESCRIPTIONS: Columns Variable Skeletal Measurements: 1 - 4 Biacromial diameter (see Fig. 2) 6 - 9 Biiliac diameter, or "pelvic breadth" (see Fig. 2) 11 - 14 Bitrochanteric diameter (see Fig. 2) 16 - 19 Chest depth between spine and sternum at nipple level, mid-expiration 21 - 24 Chest diameter at nipple level, mid-expiration 26 - 29 Elbow diameter, sum of two elbows 31 - 34 Wrist diameter, sum of two wrists 36 - 39 Knee diameter, sum of two knees 41 - 44 Ankle diameter, sum of two ankles Girth Measurements: 46 - 50 Shoulder girth over deltoid muscles 52 - 56 Chest girth, nipple line in males and just above breast tissue in females, mid-expiration 58 - 62 Waist girth, narrowest part of torso below the rib cage, average of contracted and relaxed position 64 - 68 Navel (or "Abdominal") girth at umbilicus and iliac crest, iliac crest as a landmark 70 - 74 Hip girth at level of bitrochanteric diameter 76 - 79 Thigh girth below gluteal fold, average of right and left girths 81 - 84 Bicep girth, flexed, average of right and left girths 86 - 89 Forearm girth, extended, palm up, average of right and left girths 91 - 94 Knee girth over patella, slightly flexed position, average of right and left girths 96 - 99 Calf maximum girth, average of right and left girths 101 -104 Ankle minimum girth, average of right and left girths 106 -109 Wrist minimum girth, average of right and left girths Other Measurements: 111-114 Age (years) 116-120 Weight (kg) 122-126 Height (cm) 128 Gender (1 - male, 0 - female) The first 21 variables are all measured in centimeters (cm). Values are separated by blanks. There are no missing values. STORY BEHIND THE DATA: The first two authors investigated the correspondence between frame size, girths, and weight of physically active young men and women, most of whom were within normal weight range. One goal of this investigation was to develop predictive techniques to assess the lean/fat body composition of individuals. PEDAGOGICAL NOTES: These data can be used to provide statistics students practice in the art of data analysis. Such analyses range from simple descriptive displays to more complicated multivariate analyses such as multiple regression and discriminant analysis. SUBMITTED BY: Grete Heinz 24710 Upper Trail Carmel, CA 93923 USA Louis J. Peterson Department of Health Sciences San José State University One Washington Square San José, California 95192 USA Roger W. Johnson Department of Mathematics and Computer Science South Dakota School of Mines and Technology 501 East St. Joseph Street Rapid City, South Dakota 57701 USA Carter J. Kerk Industrial Engineering Program South Dakota School of Mines and Technology 501 East St. Joseph Street Rapid City, South Dakota 57701 USA --
hancocdMar 19, 20178KB760
Time of Birth, Sex, and Birth Weight of 44 Babies
NAME: Time of Birth, Sex, and Birth Weight of 44 Babies TYPE: Observational SIZE: 44 observations, 4 variables DESCRIPTIVE ABSTRACT: The dataset contains the time of birth, sex, and birth weight for each of 44 babies born in one 24-hour period at a Brisbane, Australia, hospital. Also included is the number of minutes since midnight for each birth. SOURCE: The data appeared in the Brisbane newspaper _The Sunday Mail_ on December 21, 1997. VARIABLE DESCRIPTIONS: Columns 1 - 8 Time of birth recorded on the 24-hour clock 9 - 16 Sex of the child (1 = girl, 2 = boy) 17 - 24 Birth weight in grams 25 - 32 Number of minutes after midnight of each birth Values are aligned and delimited by blanks. There are no missing values. STORY BEHIND THE DATA: Forty-four babies -- a new record -- were born in one 24-hour period at the Mater Mothers' Hospital in Brisbane, Queensland, Australia, on December 18, 1997. For each of the 44 babies, _The Sunday Mail_ recorded the time of birth, the sex of the child, and the birth weight in grams. Additional information about these data can be found in the "Datasets and Stories" article "A Simple Dataset for Demonstrating Common Distributions" in the _Journal of Statistics Education_ (Dunn 1999). PEDAGOGICAL NOTES: The data can be used to demonstrate fitting the binomial distribution (the number of boys/girls born out of 44 births), the geometric distribution (the number of births until a boy/girl is born), the Poisson distribution (births per hour for each hour), and the exponential distribution (times between births). The normal distribution is found to be unsuitable for modeling the birth weights, but better results are obtained when birth weights are separated by sex. The dataset can also be used to illustrate hypothesis tests about proportions, comparisons of birth weights by gender, the runs test of randomness of gender, and skewed data. REFERENCE: Steele, S. (December 21, 1997), "Babies by the Dozen for Christmas: 24-Hour Baby Boom," _The Sunday Mail_ (Brisbane), p. 7. SUBMITTED BY: Peter K. Dunn Department of Mathematics and Computing University of Southern Queensland Toowoomba, Queensland, Australia 4350
hancocdMar 18, 20172KB298


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