...Stats Questions II 1.The table below displays a week's worth of data on daily sales at the Crank It Louder Music Store. ??Over that time period, what was the mean daily level of sales? A. ?$3,489.79 ?B. $4,071.42 ?C. $1,643.23 D. $2,829.92 2. The table below displays a week's worth of data on daily sales at the Crank It Louder Music Store. ??Over that time period, what was the median daily level of sales? A. $1,643.23 B. ?$3,489.79 C. ?$3,130.46 D. ?$800.12 3. The histogram below displays the age distribution of the world's billionaires as reported by Forbes Magazine in 2001. ??This distribution is best described as: ?A. Approximately normal. ?B. Strongly skewed to the right. ?C. Bimodal. D. Approximately uniform. 4) Which of the following correctly ranks from smallest to largest the measures of central tendency of the data displayed in the histogram below? ? A. Mode < mean < median.? B. ?Median < mode < mean.? C. Mode < median < mean.? D. ?The answer cannot be determined from the information provided. 5) The scatter diagram below displays the relationship between age and net worth (in US$ billions) for the world's 20 wealthiest people as reported by Forbes Magazine in 2001. ??If 45-year old Bill Gates, the world's wealthiest person, is considered an outlier and removed from the data set, what will be the effect on this relationship? A. The value of the correlation coefficient will decrease. B. ?The value of the correlation...
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...1.0 Introduction 1.1 Background of the study Private Commercial Banks (PCBs) started their journey in Bangladesh in 1982. Since then, they play a vital role in the economic development of the country. With the help of developed banking technologies and client- focused mentality, they try to ensure quality services in quick time to their customers as per their expectation. Their prudence in selecting appropriate borrowers and sector of providing loans and monitoring them closely has decreased the percentage of non-per forming loan. Besides, the prudent regulatory measure of the central bank including guidance regarding prudential norms of capital adequacy, classification of loans, on-site and off- site super vision have made the PCBs sound in Banking operation. For these reasons, they are found profitable in their business. Their exposure in respect of the cost of debt helps them to ensure higher profitability and their potentiality in the banking industry. An effectively functioning financial system requires a banking system that can earn a reasonable return by taking an acceptable level of risks. 2.0 Statement of the problem In order to survive in the long run, it is important for a bank to find out what are the factors influencing cost of debt so that it can take initiatives to increase its profitability and performance. Bank performance is also vitally important for all stakeholders, such as ...
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...hypothesis, independent variable(s), dependent variable(s). The dependent variable is the variable that is being measured and it is dependent on other factors. The independent variable is not changed by other variables and is the one being manipulated. Within Experiment 1, the dependent variable is the amount of anagrams solved and the independent variables are the degree of superstition of the individual and amount of words contained in the puzzles. The primary hypothesis of this experiment would be that, a higher degree of superstition will lessen the development of learned helplessness, which will be achieved as an increasing degree of superstition will allow for an increase in amount of anagrams solved. Explain the difference between an experimental and a quasi-experimental design. Which of these terms would best describe Experiment 1, and why? The difference between an experimental and a quasi-experimental design is random allocation. In an experimental design the participants can be randomly allocated to any condition or situation. Whereas, in a quasi-experimental design the option of random allocation is absent, which is due to the fact that the independent variable is a fixed quality of the participant. Therefore, Experiment 1 is a quasi-experiment, because the independent variable, the degree of superstition, is a quality of the participant and hence they cannot be randomly allocated to different conditions or situations (low or high believers). Describe how the ‘anagrams...
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...Worksheet (2 Sheet) PSY 335 Week 5 Assignment Research Proposal Presentation (3 PPT) PSY 335 Week 5 Assignment Research in Careers Brochure (2 Brochure) ------------------------------------------------------------- PSY 335 Week 1 Assignment Research Development Paper (2 Papers) For more course tutorials visit www.tutorialrank.com This tutorial contains 2 Papers PSY 335 Week 1 Assignment Research Development Paper Description:Watch the "Attention and Consciousness-Unlearning Through Hypnosis" video located in this week'sElectronic Reserve Readings.Write a 700- to 1,050-word paper covering the following: • What was the purpose of this study? • How does this study apply to the real world? • If you were doing the next step in this study, which research question would you develop? How could you test it? • How could you apply the steps of the scientific method to test your hypothesis? Format your paper consistent with APA guidelines.Click the Assignment Files tab to submit your assignment. ------------------------------------------------------------- PSY 335 Week 2 Assignment Descriptive Research Methods Worksheet (2 Sheet) For more course tutorials visit www.tutorialrank.com This Tutorial contains 2 Set of Answers for the same worksheet PSY 335 Week 2 Assignment Descriptive Research Methods Worksheet Watch the "Nonexperimental Research Methods in Psychology" video located...
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...that violated the crosswalk on everyday basis. Without a control group the results couldn't have been compared to the control group, and that made the research useless. This is an example of an experimental research because it shows cause and effect through the use of an independent variable that is changed by the used of a dependent variable. That dependent variable is measured. A control variable is also used to identify and measure other causes and variables that possibly existed in the situation before it was changed and measure by the experimenter. This study is not a descriptive research because descriptive research simply describes the research itself without drawing any conclusions from the research. In this research three variables are included, along with measuring and testing. This makes the research too detailed and involves conclusions which don't allow this to be a descriptive research. This research cannot be correlational because a correlational study has one variable predicting another variable. The research that is conducted in this project uses dependent and independent variable which cannot be found in a correlational study because it explores a relationship between two variable Although this research method is the only method that uses cause and effect, it does have it's flaws. A weakness in this study is the placebo effect. If a subject knows that he is being tested he can act to expectations. This error also did not occur in this study because...
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...Experimental group receives treatment in an experimental design. 2. Control group does not receive treatment in an experimental design. 3. A Small n design has many observations on a single case or a few subjects. 4. When separate groups of subjects receive different levels of the independent variable, this is referred to as Between Subject design. 5. When all subjects receive all levels of the independent variable, this is referred to as Within Subject design. 6. When the researcher measures a behavior that needs to be changed and then applies therapy and measures the behavior again, this is referred to as AB design. 7. When the researcher measures a behavior that needs to be changed, applies therapy and measures the behavior again, and then removes the treatment and measures the behavior again, this is referred to as ABA design. 8. When the criterion outcome changes over time this is referred to as Changing Criterion design. 9. When measuring several behaviors or several people with baseline periods of varying lengths and an independent variable occurs, this is referred to as a Multiple Baseline design. 10. When subjects are not randomly assigned and not all variables are under the control of the presenter, this is referred to as Quasi-Experimental design. A. Multiple Baseline B. Small n C. AB D. Control E. Experimental F. ABA G. Between Subject H. Quasi-Experimental I. Changing Criterion J. Within Subject Matching Read...
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...through previous research, or on a combination of both. Just because a question can be answered doesn’t mean that it can be answered scientifically. Step 2: Defining the Dependent and Independent Variable Dependent Variable (DV) | Variable the experimenter measures, after making changes to the IV that are assumed to affect the DV. | Independent Variable (IV) | Variable the experimenter manipulates (i.e. changes) – assumed to have a direct effect on the dependent variable. | Note: In many cases, the investigator does not manipulate the independent variable directly. He/She collects data and uses the data to evaluate the hypothesis, rather than doing a direct experiment. For example, the hypothesis that more crimes are committed during a full moon can be tested scientifically. The number of crimes committed is the dependent variable and can be measured from police reports. The phase of the moon is the independent variable. The investigator cannot deliberately change the phase of the moon, but can collect data during any phase he/she chooses. Why is the scientist limited to one independent variable per experiment? As the aim of an experiment is to see what happens when one thing is changed and how it affects something else. If you change two variables, then you don't know which variable is responsible for the change e.g. You are measuring the time it takes for something to fall. If you change both the height and the shape of the object, the time is lengthened. You don't...
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...whose action is specified on variables. Take x and y to be two variables. A function f may map x to some expression in x. Assigning gives a relation between y and x. If there is some relation specifying y in terms of x, then y is known as a dependent variable (and x is an independent variable). Statistics In a statistics experiment, the dependent variable is the event studied and expected to change whenever the independent variable is altered.[1] Modelling In mathematical modelling, the dependent variable is studied to see if and how much it varies as the independent variables vary. In the simple stochastic linear model the term is the i th value of the dependent variable and is i th value of the independent variable. The term is known as the "error" and contains the variability of the dependent variable not explained by the independent variable. With multiple independent variables, the expression is: , where n is the number of independent variables. Simulation In simulation, the dependent variable is changed in response to changes in the independent variables. Statistics Synonyms Independent variable An independent variable is also known as a "predictor variable", "regressor", "controlled variable", "manipulated variable", "explanatory variable", "exposure variable" (see reliability theory), "risk factor" (see medical statistics), "feature" (in machine learning and pattern recognition) or an "input variable."[2][3] "Explanatory variable" is preferred by some authors...
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...Variables in Research In research, variables are any factors in the experiment at hand, whether they are the factors being measured, the factors being changed by the researcher, or the factors which are kept constant in order to ensure consistency in at least one area of the study, which leads to increased reliability of the study (Shermerhorn 2014). These variables which are kept constant throughout the experiment are arguably the most important, but how can something which is never changed make such an impact to the results of any research. The importance of these unchanged factors, or constant variables, stems from their ability to isolate the independent variable, or the variable which is intentionally changed by the researcher. An example of this would be in the very simple experiment of measuring the bounce of a ball when dropped from different heights. The measured variable in this experiment is the height of the bounce of the ball, the experimenter is interested to see the effect on the rebound height, due to changing the drop height. In this example, the must obvious factor in the experiment which needs to be maintained is the type of ball, if this variable were to be changed, all previous data gathered will become irrelevant, as the results would all be in reference to a different ball, whose rebound heights have no connection to that of the new ball. Therefore, it is plain to see how useful control variables can be when used properly to isolate the variable which...
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..._____________ Period ______ Lab: Investigating Photosynthesis and Cellular Respiration Background: All organisms are dependent on a healthy carbon dioxide-oxygen balance. Photosynthesis and cellular respiration are key processes in maintaining this balance. Plants, through the process of photosynthesis, use energy absorbed from sunlight, water, and carbon dioxide to produce sugars and oxygen. Animals and plants, through the process of cellular respiration, use oxygen and sugars to produce carbon dioxide, water, and the energy needed to maintain life. Purpose: To determine how carbon dioxide cycles through a biological system by performing the “Carbon Transfer Through Snails and Elodea” lab activity. Procedure: 1. Read through the background information and purpose. Create your own question for what you are investigating in this experiment. a. Problem (in question form): How are photosynthesis and cellular respiration related? 2. Obtain 8 test tubes of equal size/volume and number the test tubes 1-8. Fill each test tube with approximately 30 mL of deionized water. 3. Add enough bromothymol blue (BTB) indicator to solution to each test tube to change the water to a green color (about 3 mL). 4. What is Bromothymol Blue? Why is the BTB in the test tube green (Hint: recall the teacher demonstration)? Bromothymol blue is an indicator that changes color when carbon dioxide is present. Green in the test tube means a low carbon dioxide presence...
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...through different experiments and tests. The tests that were done in this experiment were trying to show the correct melting temperature of the model. How will these experiments turn out in the end? To begin, the scientists in this experiment want to show how they tried to simulate DNA. The methods that were done were to try and show the nucleotide sequences and figuring out the values of the X and Y chromosomes. Also, the scientists tried to conserve the identity of the stem of the cytosine bases in the loop. The cytosine bases were replaced with guanines of different lengths. Cytosine bases are involved with the pairing of the DNA and the chromosomes. The experiment used DNA hairpins. DNA hairpins are the structure of the DNA. The scientists made an hypothesis to try and test what they thought would happen during the experiment. The hypothesis that was made during this experiment was that by the different tests that were done, one of those tests would have a better melting temperature. An independent variable changes from the beginning of the experiment to the end of the experiment. It is something that the scientists change for the experiment. The independent variable in this experiment was the changing of the melting temperature. The dependent variable is a variable that is a result of the independent variable. This type of variable in the...
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...Procedure of Creating Dimensionless Groups 1. List all Variables that are included in the problem 2. Express each variable in terms of basic dimension 3. Determine the required number of pi terms 4. Select a number of repeating variables 5. Form a pi term by multiplying one of the non repeating variable by the product of repeating variables each raised to an exponent that will make the combination dimensionless 6. Repeat step 5 7. Check all the resulting pi terms 8. Express the final form as a relationship among the pi terms and think about what it means Recapitulation 1. A base quantity is a property that is defined in physical terms by two operations: a comparison operation, and an addition operation. The comparison operation is a physical procedure for establishing whether two samples of the quantity are equal or unequal; the addition operation defines what is meant by the sum of two samples of that property. 2. Base quantities are properties for which the following concepts are defined in terms of physical operations: equality, addition, subtraction, multiplication by a pure number, and division by a pure number. Not defined in terms of physical operations are: product, ratio, power, and logarithmic, exponential, trigonometric and other special functions of physical quantities. 3. A base quantity can be measured in terms of an arbitrarily chosen unit of its own kind and a numerical value. 4. A derived quantity of the first...
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...(i.e., causal, association, or frequency). Explain your answer. The title of the article is “Brief Sleep After Learning Keeps Emotional Memories Alive for Years” which predicts a causal claim. I believe the researchers are making a causal claim because the title does not use verb phrases that are linked with association claims such as prefers, predict, or tied to. The title also does not use descriptive statistics to describe one variable, which would lead to a frequency claim. The title also infers the use two variables where one is a manipulated independent variable. 2. What hypothesis or hypotheses did the study attempt to test? The study attempted to test the effect of brief sleep or lack of sleep after learning new material and its’ affect on how well emotional memories are remembered. 3. What was/were the primary independent variable(s) of the study? The primary independent variable was the amount of sleep the participants received. 4. How was/were the independent variable(s) operationalized? The independent variable was operationalized in two levels where one level was a 3-hour interval of wakefulness and the other was a 3-hour interval of sleep after learning. Sleep was measured and monitored...
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...How To Write a Thesis Statement What is a Thesis Statement? Almost all of us—even if we don’t do it consciously—look early in an essay for a one- or two-sentence condensation of the argument or analysis that is to follow. We refer to that condensation as a thesis statement. Why Should Your Essay Contain a Thesis Statement? to test your ideas by distilling them into a sentence or two to better organize and develop your argument to provide your reader with a “guide” to your argument In general, your thesis statement will accomplish these goals if you think of the thesis as the answer to the question your paper explores. How Can You Write a Good Thesis Statement? Here are some helpful hints to get you started. You can either scroll down or select a link to a specific topic. How to Generate a Thesis Statement if the Topic is Assigned How to Generate a Thesis Statement if the Topic is not Assigned How to Tell a Strong Thesis Statement from a Weak One How to Generate a Thesis Statement if the Topic is Assigned Almost all assignments, no matter how complicated, can be reduced to a single question. Your first step, then, is to distill the assignment into a specific question. For example, if your assignment is, “Write a report to the local school board explaining the potential benefits of using computers in a fourth-grade class,” turn the request into a question like, “What are the potential benefits of using computers in a fourth-grade class?” After you’ve chosen the...
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...Independent variables are variable that stand alone and are not changed by the other variables that are being measured. Independent variables are used to predict a response or result (Fink, 2002). Dependent variables could change depending on the results. The writer’s objective is to measure teachers’ perception of the principal’s role in technology implementation. This objective is a descriptive objective because the writer is measuring the teachers’ perceptions of the principal’s role in implementing technology. The dependent variable is the teachers’ perception of the principal’s role in technology implementation. The type of data for the dependent variable is nominal. The survey requires teachers to list what type of technology they use in the classroom and list how the principal implements technology. The objective compares teachers’ perception of the principal’s role in implementing technology. To analyze the results the writer will analyze frequencies. Reference Fink, A. (2002). The survey handbook. (Vol. 1). In A. Fink (Ed.), The Survey Kit (2nd ed). Thousand Oaks, CA: Sage Publications. Ok Tracy. First, this is simply a descriptive objective as you simply want to measure teachers' perceptions of the principal's role. So there is only one variable, what is it? How will you be measuring this variable? With the answer to Question 20 on your survey? If so, then you are correct that this would be nominal data (though I think this would be a stronger question...
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