Correlation_and_Regression_lab

Correlation_and_Regression_lab - Name: Date of lab: _ Lab 3...

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Name: ______________________________________________ Date of lab: ______________________ Section number: M E 345._______ Lab 3 Precalculations – Individual Portion Correlation and Regression: Statistical Analysis of Trends Precalculations Score (for instructor or TA use only): _____ / 20 1. Write down Ohm’s law, labeling each variable. (Please use V for voltage, for consistency.) 2. Imagine an electrical circuit in which the resistance is constant, but the voltage is varied. Both voltage and current are measured as data pairs. Do you expect current to be correlated with voltage? ( No Yes ) Explain. 3. Repeat for the case in which voltage is constant, but resistance is varied. Do you expect current to be linearly correlated with resistance? ( No Yes ) Explain. 4. What is the definition of the spring constant of a spring, and what are its dimensions and typical SI units? 5. Think about the pressure inside a balloon. As the balloon is inflated (as it gets bigger and bigger), do you expect the pressure inside the balloon to go down, stay the same, or go up? Explain. Do you expect pressure to be linearly correlated with balloon diameter? Why or why not?
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Cover Page for Lab 3 Lab Report – Group Portion Correlation and Regression: Statistical Analysis of Trends Name 1: ___________________________________________________ Section M E 345._______ Name 2: ___________________________________________________ Section M E 345._______ Name 3: ___________________________________________________ Section M E 345._______ [Name 4: ___________________________________________________ Section M E 345._______ ] Date when the lab was performed: ______________________ Group Lab Report Score (For instructor or TA use only) : Lab experiment and results, plots, tables, etc. _____ / 50 Discussion _____ / 20 Neatness & grammar _____ / 10 TOTAL ______ / 80 Comments (For instructor or TA use only) : NOTE: The instructor or TA reserves the right to deduct points for any of the following: Arriving late to lab or leaving before your lab group is finished. Not participating in the work of your lab group (freeloading). Causing distractions, arguing, or not paying attention during lab. Other (at the discretion of the instructor or TA).
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Correlation and Regression: Statistical Analysis of Trends Author: John M. Cimbala, Penn State University Latest revision: 24 September 2007 Introduction and Background ( Note : To save paper, you do not need to print this section for your lab report.) Consider a set of n measurements of some variable y as a function of another variable x . Typically, y is some measured output as a function of some known input, x , and such data are often taken for the purpose of static calibration – that is, calibration in which time is not relevant in the measurement . For example, the voltage output of a pressure transducer is calibrated as a function of pressure, which is in turn measured with a reliable, trusted instrument. In general, in such a set of measurements, there may be:
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Correlation_and_Regression_lab - Name: Date of lab: _ Lab 3...

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