Researchers studying anthropometry collected body girth measurements and skeletal diameter measurements, as well as age, weight, height and gender, for 507 physically active individuals. Use the table to answer the questions.Min147.2Q1164.3Median171.3Mean172.5SD8.7Q3178.1Max198.1a) 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 standard deviation of heights of active individuals? ____________ cmd) The IQR extends from ______________ cm to ______________ cm, giving an IQR of ______________ cm.e) Is a person who is 1m 90cm (190cm) tall considered unusually tall? And is a person who is 1m 50cm (150cm) considered unusually short?__No, they are not unusual since these heights are within two standard deviations of the mean__No people can come in all sizes, we cannot define usual or unusual heights__Yes, they are unusual since these heights are more than two standard deviations away from the mean__We cannot tell from the given information

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Answered: Researchers studying anthropometry…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Researchers studying anthropometry collected body girth measurements and skeletal diameter measurements, as well as age, weight, height and gender, for 507 physically active individuals. Use the table to answer the questions.

Min	147.2
Q1	164.3
Median	171.3
Mean	172.5
SD	8.7
Q3	178.1
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? ______________ cm
c) What is the point estimate for standard deviation of heights of active individuals? ____________ cm
d) The IQR extends from ______________ cm to ______________ cm, giving an IQR of ______________ cm.
e) Is a person who is 1m 90cm (190cm) tall considered unusually tall? And is a person who is 1m 50cm (150cm) considered unusually short?
__No, they are not unusual since these heights are within two standard deviations of the mean
__No people can come in all sizes, we cannot define usual or unusual heights
__Yes, they are unusual since these heights are more than two standard deviations away from the mean
__We cannot tell from the given information

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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