Problem 1. A study of the surface roughness of coated interior pipe used in oil fields resulted in the databelow (measurements in micrometers). Conduct a nonparametric test to determine whetherthe median surface roughness of coated interior pipe differs from 2 micrometers. Test with 95%confidence. The image displays a table with two rows of numerical data. Here is the transcription of the numbers:- **First Row:** 1.72, 2.50, 2.16, 2.13, 1.06, 2.24, 2.31, 2.03, 1.09, 1.40- **Second Row:** 2.57, 2.64, 1.26, 2.05, 1.19, 2.13, 1.27, 1.51, 2.41, 1.95This table may be used in educational contexts to illustrate numerical relationships or data analysis, such as calculating averages, understanding distributions, or comparing two sets of values. There are no graphs or diagrams accompanying this data in the image.

Answered: Problem 1. A study of the surface…

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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Problem 1. A study of the surface roughness of coated interior pipe used in oil fields resulted in the data
below (measurements in micrometers). Conduct a nonparametric test to determine whether
the median surface roughness of coated interior pipe differs from 2 micrometers. Test with 95%
confidence.

The image displays a table with two rows of numerical data. Here is the transcription of the numbers:

- **First Row:** 1.72, 2.50, 2.16, 2.13, 1.06, 2.24, 2.31, 2.03, 1.09, 1.40
- **Second Row:** 2.57, 2.64, 1.26, 2.05, 1.19, 2.13, 1.27, 1.51, 2.41, 1.95

This table may be used in educational contexts to illustrate numerical relationships or data analysis, such as calculating averages, understanding distributions, or comparing two sets of values. There are no graphs or diagrams accompanying this data in the image.

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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