Being Wrong: Adventures in the Margin of Error Being wrong and having someone tell you that your wrong isn’t a good feeling. Many people feel like they can never be wrong and in my opinion that’s a very ignorant way to think. No one was made perfect and I say that to say this‚ being wrong is imbedded in our human DNA. That’s why in mathematics and science they have formulas that have human error or margin of error as variables in their calculations. I remember one day I was arguing with a friend
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Experiment 4: Experimental Errors and Uncertainty Brett R. Spencer Date Performed: June 10th‚ 2015: 3:10 p.m. PHY 111C02 Section 1: Experiment and Observation Time‚ t (s) Dist. Y1 (m) Dist. Y2 (m) Dist. Y3 (m) Dist. Y4 (m) Dist. Y5 (m) Mean of Y Standard Dev. t^2 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.50 1.00 1.40 1.10 1.40 1.50 1.28 0.22 0.25 0.75 2.60 3.20 2.80 2.50 3.10 2.84 0.30 0.56 1.00 4.80 4.40 5.10 4.70 4.80 4.76 0.16 1.00 1.25 8.20 7.90 7.50 8.10 7.40 7.82
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Type I and II errors Mistakenly rejecting the null hypothesis is a type 1 error. These errors are not avoidable and are part of statistical testing‚ but we can lessen the occurrence by setting the significance at a lower level. However‚ by setting the significance level lower; let us say .001‚ we then increase the chance of type 2 errors. Failing to correctly reject the null hypothesis creates a type 2 error‚ this is because; according to Aron (2009) “with an extreme significance level like
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Determining Operating Systems and Software Applications Business Information Systems BIS320 Determining Operating Systems and Software Applications Since 1955 the McDonald’s Corporation has become the largest and best known fast food franchise in the world. Employing over 1.8 million employees‚ with over 34‚000 restaurants and 5000 franchises worldwide‚ McDonald’s Corporation serves over 69 million customers a day (McDonalds‚ 2013). To meet that challenge‚ McDonald’s Corporation has developed
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Tragedy and its Tragic Heroes Tragedy: A story that tells of the ruin of a great man. In tragedies the main character can sometimes be characterized as a tragic hero. A tragic hero is “a literary character‚ who makes an error of judgment or has a fatal flaw‚”(Merriam Webster) which is actually their downfall. In Oedipus The King‚ the main character‚ the king of Thebes‚ is seen as the tragic hero on this particular tragedy. Now‚ fast-forwarding through time to 1949 Arthur Miller wrote Death
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Top-up Degrees (Entry to year 3 – UK Universities) Acceptance to a university programme is at the discretion of the individual university Top-up degrees are of one year duration‚ entering onto the final year of the full time undergraduate BA / BSc Honours degrees. Students who have an HND (Higher National Diploma) may progress onto the final year of a degree programme‚ subject to unit grade performance at HND‚ and English language capability (usually IELTS 6.0) The following universities
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2014 HIGHER SCHOOL CERTIFIC ATE EXAMINATION Mathematics General 2 FORMULAE AND DATA SHEET Financial Mathematics Data Analysis Simple interest Mean of a sample I = Prn P r n x= sum of scores number of scores is initial amount is interest rate per period‚ expressed as a decimal is number of periods z-score For any score x‚ z= Compound interest A = P (1 + r ) A P r n n x s is final amount is initial amount is mean is standard deviation
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Biaxial stress & strain Poisson’s ratio σx = E1-v2 (εx + vεy) εx = 1E (σx - vσy) Uniaxial: v = - εyεx σy = E1-v2 (εy + vεx) εy = 1E (σy - vσx) Biaxial: v = E2G - 1 εz = - vE (σx + σy) Triaxial stress & strain
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Determining the Rate of Osmosis with Water and Sucrose 10/3/2012 Determining the Rate of Osmosis with Water and Sucrose Author: Results: Bag 1 had a rate of osmosis equal to 0.01 grams per minute. Bag 2 had a rate of osmosis equal to 0.0543 grams per minute. Bag 3 had a rate of osmosis equal to 0.0471 grams per minute. Bag 4 had a rate of osmosis equal to 0.0886 grams per minute. Bag 5 had a rate of osmosis equal to -0.0914 grams per minute (Figure A). Figure A: Shifting of mass
Free Concentration Solution Human body
- (Capex + ∆NOWC) Total Asset Turnover (TATO) = Sales / Total Assets Market Value of Equity = Stock Price x Number of Shares - Total Book Value of Equity Total Amount of Debt = Target Debt to Asset Ratio % x Assets *Manipulate this formula (MVE) to solve for the various parts Times Interest Earned (TIE) = EBIT / Interest Return on Total Assets (ROA) = Net Income / Assets Market Value Added (MVA) = Market Value of Equity - Book Value of Equity Basic
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