Wire electrical-discharge machining (WEDM) is a process used to manufacture conductive hard metal components. It uses a continuously moving wire that serves as an electrode. Coating on the wire electrode allows for cooling of the wire electrode core and provides an improved cutting performance. An article provided the following sample observations on total coating layer thickness (in μm) of eight wire electrodes used for WEDM:21, 16, 29, 36, 43, 25, 24, 25**Task:**Calculate a 99% confidence interval (CI) for the standard deviation of the coating layer thickness distribution. (Round your answers to two decimal places.)\[ (\text{Input Field 1}, \text{Input Field 2}) \]**Question:**Is this interval valid regardless of the nature of the distribution? Explain.- [ ] Yes, there are enough data points for this interval to be valid.- [x] No, validity of this interval requires that the coating layer thickness be, at least approximately, normally distributed. ✔️The task involves the conceptual understanding of confidence intervals related to statistical data distributions, emphasizing the requirement for normality when calculating the interval for standard deviation.

Method: by using the critical value of chi-square to find the confidence interval for standard…

Answered: Wire electrical-discharge machining…

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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8:50 AA www-awn.aleks.com O DESCRIPTIVE STATISTICS Approximating the standard deviation of a data set. Reyesburg Corporation is contemplating using a new, more expensive glue in the construction of its laminated veneer lumber. Of importance to the company is the variability of the carrying load of the lumber. The company has tested 20 beams using the new glue, recording for each beam the pressure (in pounds per square foot) at which the beam breaks. The data collected are presented in the following histogram: Frequency 920 Carrying load (in pounds per square foot) 900 Based on this histogram, estimate the standard deviation of the sample of 20 carrying loads. Carry your intermediate computations to at least four decimal places, and round your answer to at least one decimal place. (If necessary, consult a list of formulas.) Explanation Check Terms of UseI Privacy I Accessibility
The toco toucan, the largest member of the toucan family, possesses the largest beak relative to body size of all birds. This exaggerated feature has received various interpretations, such as being a refined adaptation for feeding. However, the large surface area may also be an important mechanism for radiating heat (and hence cooling the bird) as outdoor temperature increases. Here are data for beak heat loss, as a percent of total body heat loss from all sources, at various temperatures in degrees Celsius. [Note: The numerical values in this problem have been modified for testing purposes.] Temperature (oC)(oC) 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Percent heat loss from beak 33 32 33 32 39 43 56 48 44 49 44 56 58 60 60 63 The equation of the least-squares regression line for predicting beak heat loss, as a percent of total body heat loss from all sources, from temperature is: (Use decimal notation. Enter the values of the intercept and slope rounded to two…
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