4.4 Heights of adults: Researchers studying anthropometry collected body girth measurements and skeletal diameter measurements, as well as age, weight, height and gender, for 507 physically active individuals. The histogram below shows the sample distribution of heights in centimeters (Heinz, 2003).Min147.2Q1163.8Median170.3Mean171.1SD9.4Q3177.8Max198.1a) What is the point estimate for the average height of active individuals? cmb) What is the median height of these active individuals? cmc) What is the point estimate for the standard deviation of the heights of active individuals? cm

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Description: 4.4 Heights of adults: Researchers studying anthropometry collected body girth measurements and skeletal diameter measurements, as well as age, weight, height and gender, for 507 physically active individuals. The histogram below shows the sample di

Point estimate for average height or mean is 171.1 cm

Answered: Heights of adults: Researchers…

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4.4 Heights of adults: Researchers studying anthropometry collected body girth measurements and skeletal diameter measurements, as well as age, weight, height and gender, for 507 physically active individuals. The histogram below shows the sample distribution of heights in centimeters (Heinz, 2003).

Min	147.2
Q1	163.8
Median	170.3
Mean	171.1
SD	9.4
Q3	177.8
Max	198.1

a) What is the point estimate for the average height of active individuals? cm

b) What is the median height of these active individuals?

c) What is the point estimate for the standard deviation of the heights of active individuals?

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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