(a) The article “Study on the Life Distribution of Microdrills" (Z. Yang, Y. Chen, andY. Yang, Journal of Engineering Manufacture, 2002:301–305) reports that in asample of 50 micro drills drilling a low-carbon alloy steel, the average lifetime(expressed as the number of holes drilled before failure) was 12.68 with a standard4deviation of 6.83. Construct a 95% confidence interval for the mean lifetime ofmicro drills under these conditions.(b) Based on a large sample of capacitors of a certain type, a 95% confidence intervalfor the mean capacitance, in µF, was computed to be (0.213, 0.241). Construct a90% confidence interval for the mean capacitance of this type of capacitor.(c) The article “An Automatic Visual System for Marble Tile Classification" (L.Carrino, W. Polini, and S. Turchetta, Journal of Engineering Manufacture,2002:1095–1108) describes a measure for the shade of marble tile in which theamount of light reflected by the tile is measured on a scale of 0–255. A perfectlyblack tile would reflect no light and measure 0, and a perfectly white tile wouldmeasure 255. A sample of nine Mezza Perla tiles were measured, with thefollowing results:204.999206.149202.102207.048203.496206.343203.496206.676205.831Construct a 95% confidence interval for the mean shade of Mezza Perla tile.

NOTE- AS PER COMPANY POLICY I HAVE CALCULATED FIRST MAIN QUESTION ONLY HERE GIVEN FOR AVG LIFETIME…

Answered: (a) The article “Study on the Life…

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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