2.2 Losses at an oil refinery (in millions of dollars) dueto excess heat can be divided according to the reasonbehind the generation of excessive heat.oversupplying fuelexcess aircarelessness of operatorincomplete combustion2021249627(a) Draw a Pareto chart.(b) What percent of the loss occurs due to(1) excess air?(2) excess air and oversupplying fuel?2.7

Given data: over supplying fuel 202 excess air 124 carelessness of operator 96 incomplete…

Answered: 2.2 Losses at an oil refinery (in…

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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Doctor Specialties Below are listed the numbers of doctors in various specialties by gender. Psychiatry Pathology Gynecology Male 27,319 12,551 23,813 Female 14,066 6620 18,520 Send data to Excel Choose 1 doctor at random. Part: 0 / 4 Part 1 of 4 (a) Find P (female psychiatry). Round your answer to three decimal places. P (female|psychiatry) = |
99.744 1+3.014e-0.799t represents the percentage of companies using Microsoft Word t years since 1984. What percentage of companies used 22) The logistical model P(t) Microsoft Word in 1995?
PQ4
5:02 A professor has recorded exam grades for 10 students in his class, but one of the grades is no longer readable. If the mean score on the exam was 80 and the mean of the 9 readable scores is 85, what is the value of the unreadable score? The value of the unreadable score is 53 ||| = VO) 1 2 ... 46 ... - 16% O
ge 2: Has the proportion of Americans that are "20-somethings" decreased? According to the US Census Bureau, 14.8% of Americans living in 2004 were "20- somethings" (between ages 20 and 29). You take a random sample of 500 Americans and find that 59 of them fall in this age range. Has the proportion of Americans ages 20-29 decreased from what it was in 2004? for this problem (z-test or t-test).
Up-County Associates is hired to estimate the proportion of county households that own three or more automobiles. They conducted their survey using a simple random sample of 250 randomly selected households and found that 23% of those households owned three or more automobiles. (a) Is the proportion, 23%, a parameter or a statistic? Explain. (b) If Up-County Associates were to continually choose simple random samples of 250 randomly selected households, each time recording the proportion of households in the sample owning three or more automobiles, what would be the “shape” of the resulting distribution of all these sample proportions? Explain. (c) Suppose now that survey company Lower-County Polling also conducted a survey to determine the proportion of county households that own three or more automobiles, but they surveyed only 100 randomly selected households. If Lower-County Polling were also to sample over and over again (using simple random samples…

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over supplying fuel	202
excess air	124
carelessness of operator	96
incomplete combustion	27