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MATLAB: An Introduction with Applications

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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Question

**Construct a Normal Probability Plot for Low-Viscosity Paint Coating Thickness**

You are provided with a sample of observations for the coating thickness of low-viscosity paint. The goal is to construct a normal probability plot for these observations.

**Sample Observations**:
- Group 1: 0.82, 0.87, 0.88, 1.03, 1.11, 1.12, 1.29, 1.30
- Group 2: 1.48, 1.48, 1.61, 1.63, 1.64, 1.72, 1.74, 1.85

**Instructions**: Use statistical tools as needed to determine the z percentile associated with each sample observation. Round your answers to two decimal places.

**Sample Observations with Corresponding z Percentiles**:
- 0.82: z percentile = -1.86
- 0.87: z percentile = -1.34

(Note: One of the entries has been marked correct and another incorrect in a hypothetical scenario for learning purposes.)

**Graphs/Diagrams**:
There are no specific graphs or diagrams attached to this exercise. You are expected to further analyze these datasets, potentially using digital tools to plot the data on a normal distribution curve and ascertain the fit.

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