4. The specification of the melting point of an alloy is 1200 degrees Celsius. If the melting pointdiffers from this by more than 20 degrees, the composition of the alloy will have to bechanged. Assume the melting point is normally distributed with standard deviation 35degrees. A sample of 25 alloys were obtained and the average melting point were 1224degrees. By using a = 0.01, determine whether the composition of the alloy will have to bechanged?JTM

Answered: 4. The specification of the melting…

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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Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find P70, the 70-percentile. This is the temperature reading separating the bottom 70% from the top 30%.P70 = °C
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4. The specification of the melting point of an alloy is 1200 degrees Celsius. If the melting point differs from this by more than 20 degrees, the composition of the alloy will have to be changed. Assume the melting point is normally distributed with standard deviation 35 degrees. A sample of 25 alloys were obtained and the average melting point were 1224 degrees. By using a = 0.01, determine whether the composition of the alloy will have to be changed? UTM UTM

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