1 ECE 402 TEST 2 SUMMER 2009 July 23‚ 2009 NAME: INSTRUCTIONS: Please Read If you need more room‚ write on the back side of the PREVIOUS page‚ not the back of the current page!! Please do not use your paper. Open book(s) and notes‚ including any lab related material. Cell phones off and out of sight. Be sure what you have written down is correct. YOU COULD LOSE POINTS FOR INCORRECT STATEMENTS. There are 6 problems on 4 total pages‚ including this page‚ make sure you have all pages now. The tests
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CHI-SQUARE TEST (χ²): Chi-square is a statistical test commonly used to compare observed data with data we would expect to obtain according to a specific hypothesis. For example‚ if‚ according to Mendel’s laws‚ you expected 10 of 20 offspring from a cross to be male and the actual observed number was 8 males‚ then you might want to know about the "goodness to fit" between the observed and expected. Were the deviations (differences between observed and expected) the result of chance‚ or were they
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power over the other two (ex: President can veto legislation passed by Congress; Congress can impeach the President‚ etc.) Collective action problems: Collective action says that in order to achieve things‚ individuals must work together. You can do more together than you can do on your own. Situations in which the members of a group would benefit by working together to produce some outcome‚ but each individual is better off refusing to cooperate and reaping the benefits from those who do the work
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Association Tests. For centuries‚ humans banded together to form groups to survive. The members of each group feel a close connection to the group they belong to and the other members in their group. When people are in a particular group they tend to
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indicator is 0.53V. (n = 2) What is the useful voltage range of this indicator? (B) Starch indicators are useful when iodine titrations (organic oxidations) are performed. Why is it considered an advantage in these titrations to have iodine as the titrant instead of the analyte? 3. An environmental chemist is going to field test the chemical oxygen demand factor for a stream in Yellowstone Park.
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Aptitude test 1. Find the nest term in series ? 25 16 9 4 1 0 ? Ans. (-1)2 = 1 2. If (NM)2= RRM where N.M & R are distinct digits. Then possible values for R are (a) 1 (b) 2 (c) 3 (d) none of these Ans (b) -2 3. A man buys spirit at Rs. 60 per letter‚ adds water to it and then sells it at Rs. 75 per litter. What is the ratio of spirit to water if his profit in the feal is 37.5%? (a) 9:1 (b) 10:1 (c) 11:1 (d) None of these. Ans (b) 10.1 4. A certain quantity of
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BENKELMAN BEAM METHOD A.C.Benkelman devised the simple deflection beam in 1953 for measurement of pavement surface deflection. It is widely used all over the world evaluation of the requirements of strengthening of flexible pavements. This method is done to lay down a uniform procedure for the design of flexible overlays or per I R C:81-1981 here a tentative guideline was published by the Indian road congress under the title “Tentative Guidelines for strengthening of flexible road pavements using
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and Benedicts Soloution (heated) The test tube was heated for 5-6 minutes. After 2 minutes of making sure it was nothing was going to change after heating‚ it was clear that there was no change had occurred with the benedict’s solution. The benedicts solution stayed a light blue color when added to the strong starch solution‚ and continued to stay the same color after heated. This indicates no simple sugars present. 3 Weak starch‚ saliva‚ iodine The test tube was held underneath the armpit for
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The IAT tests are a series of fast-paced questions that are designed to capture biases towards specific groups of people. I‚ personally‚ completed tests that would find biases that I have towards disability‚ age‚ and skin color. The first test that I took was based on my preference of abled or disabled persons. I picked this test because I enjoy working with people of special needs‚ and some of the people I have met undergo speech therapy. When my results came in‚ IAT suggested that I have a moderate
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BIO 108 Take Home Chapter 26 Test Due: March 5‚ 2013 This test contains 11 questions‚ each worth 10 points. The highest possible score is 110%. 1. In your life‚ you probably have had before compared organisms and categorized them according to their common and distinct characteristic features. Through educational settings‚ you probably also have gained insights into similarities and differences between species. On the second page of this test‚ arrange the following species into your own phylogenetic
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