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    Title: Laboratory 2: Measurement of Biochemical Oxygen Demand (BOD) Objective To determine the amount of oxygen necessary for biological oxidation of wastewater effluent and determine the amount of oxygen required by bacteria while stabilizing decomposable organic matter. Methodology Apparatus ; Biochemical Oxygen Demand (BOD) meter‚ Dissolved Oxygen bottle (DO bottle)‚ pipette‚ Teflon tape‚ dilution water‚ incubator machine. Procedure; Add 300 ml dilute water then take DO reading immediately

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    Intro to Descriptive Statistics

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    STAT 110 INTRODUCTION TO DESCRIPTIVE STATISTICS Fall‚ 2006 Lecture Notes Joshua M. Tebbs Department of Statistics The University of South Carolina TABLE OF CONTENTS STAT 110‚ J. TEBBS Contents 1 Where Do Data Come From? 1 1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Individuals‚ variables‚ and data . . . . . . . . . . . . . . . . . . . . . . . 2 1.3 Observational studies . . . . . . . . . . . . . . . .

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    Oxygen and Air Nanobubble Water Solution Promote the Growth of Plants‚ Fishes‚ and Mice Kosuke Ebina1*‚ Kenrin Shi1‚ Makoto Hirao2‚ Jun Hashimoto3‚ Yoshitaka Kawato1‚ Shoichi Kaneshiro1‚ Tokimitsu Morimoto1‚ Kota Koizumi1‚ Hideki Yoshikawa1 1 Department of Orthopaedic Surgery‚ Graduate School of Medicine‚ Osaka University‚ Suita‚ Osaka‚ Japan‚ 2 Department of Orthopaedic Surgery‚ National Hospital Organization‚ Osaka Minami Medical Center‚ Kawachinagano‚ Osaka‚ Japan‚ 3 Department of Immunology‚

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    Managerial Statistics

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    1) Suppose that an independent laboratory has tested trash bags and has found that no 30-gallon bags that are currently on the market have a mean breaking strength of 50 pounds or more. On the basis of these results‚ the producer of the new‚ improved trash bag feels sure that its 30-gallon bag will be the strongest such bag on the market if the new trash bag’s mean breaking strength can be shown to be at least 50 pounds. The mean of the sample of 40 trash bag breaking strengths in Table 1.9 is x=50

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    Statistics for Business

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    Does asymptotic mean that the normal curve gets closer and closer to the X-axis but never actually touches it? Yes‚ asymptotic means that the curve of a line will approach 0 (the x-axis)‚ but it will not touch 0 and instead will extend to infinity. In this class‚ this applies to the normal continuous distribution and is one of the 4 key characteristics of a normal continuous distribution that our text book discusses. This means that the curve of the line will extend infinitely in both the negative

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    Statistics of Infidelity

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    Given the secretive nature of infidelity‚ exact figures about cheating and extra-marital affairs are nearly impossible to establish. But‚ listed below are some of the most well-supported facts about cheating. All cited sources can be found on our reference page. •It is estimated that roughly 30 to 60% of all married individuals (in the United States) will engage in infidelity at some point during their marriage (see‚ Buss and Shackelford for review of this research). And these numbers are probably

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    Statistic Assigment

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    Contents 1.0 Chapter 1-Introduction‚ problem statement and objectives 2 2.0 Chapter 2- Literature Review 4 3.0 Chapter 3-Methodology 7 4.0 Chapter 4- Result 8 5.0 Conclusion 9 6.0 References 10 7.0 Articles 11 8.0 Appendix 11 * Chapter 1-Introduction‚ problem statement and objectives This assignment appertains to analyzing the relationship between one dependent variable with various independent variables. This assignment will be divided into 5 chapters in which

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    Basic Statistics

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    | Project paper and Feasibility Paper: Week 2 | As preparation for the final research paper‚ formulate a theory about the correlation between measurable independent variables (causes) and one measurable dependent variable (the effect). Be sure to have at least two independent variables for proposed research paper. The topic proposal should include the following four items which serve as the foundation for the final research paper after instructor feedback is given. | 1) Purpose Statement In

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    Intro Into Statistics

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    Exercise 5-57 Assume there are 23 homes in the Quail Creek area and 9 of them have a security system. Four homes are selected at random: | (a) | What is the probability all four of the selected homes have a security system? (Round your answer to 4 decimal places.) |   Probability |   | (b) | What is the probability none of the four selected homes have a security system? (Round your answer to 4 decimal places.) |   Probability |   | (c) | What is the probability at least one

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    Ap Statistics

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    |T F |1. |If on average y increases as x increases‚ the correlation coefficient is positive. | |T F |2. |Pearson’s correlation coefficient‚ r‚ does not depend on the units of measurement of the two variables. | |T F |3. |The value of Pearson’s r is always between 0 and 1. | |T F |4. |If r is close to 1‚ then the points lie close to a straight line with a positive

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