1.8. Since numbers rely on the researcher to give meaning, which of the below points are correctregarding data analysis using any adopted technique?A. Well collected and processed data through adequate techniques are self-explanatory; businessand decision makers may as well interpret with no aidB. It is a straight-forward process that involves a number of steps, approaches, and similartechniques.C. Intelligence collected from data analyses ultimately aids businesses in making well-informed,prudent, and necessary decisions; the goal of data analysis is to aid decision-making for betterresultsD. A & BE. B & C

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Answered: 1.8. Since numbers rely on the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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3. Statistic or parameter ? a.Researchers want to determine what percentage of Maryland residents are in favor of the death penalty. Suppose that 7% of a random sample of 1200 residents are in favor of the death penalty. This percentage (7%) would represent statistic/parameter b. The online MBA director at a large business school surveys a sample of current students to determine their level of satisfaction with the program. She finds that 67% of them are "very satisfied" with the online program. This result is statistic/parameter. c. All the third graders in a county were asked to complete a survey about who likes vanilla ice cream. 90% response was in favor of the flavor. This is statistic/parameter. d. The average Statistics test scores of all students in in PGCC a. A study took a group of adults and randomly divided them into two groups. One group was told to drink tea every night for a week, while the other group was told not to drink tea that week. Researchers then compared when…
The National Assessment of Educational Progress (NAEP) includes a mathematics test for eighth‑grade students. Scores on the test range from 00 to 500.500. Demonstrating the ability to use the mean to solve a problem is an example of the skills and knowledge associated with performance at the Basic level. An example of the knowledge and skills associated with the Proficient level is being able to read and interpret a stem‑and‑leaf plot. In 2019, 147,400147,400 eighth‑graders were in the NAEP sample for the mathematics test. The mean mathematics score was ?⎯⎯⎯=282.x¯=282. We want to estimate the mean score ?μ in the population of all eighth‑graders. Consider the NAEP sample as an SRS from a Normal population with standard deviation ?=40. According to the 9595 part of the 68-95-99.768-95-99.7 rule, 95%95% of all values of ?⎯⎯⎯x¯ fall within how many points on either side of the unknown mean ??μ? Give your answer to four decimal places.
4. A college student is contemplating a possible career option. One factor that will influence his decision is the amount of money he is likely to make. He decides to look up the average salary of graduates in that profession. Which information would be more useful to him, the mean salary or the median salary? Why?
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ENGINEERING PROBABILITY AND STATISTICS 1. Find a simple research problem with ready dataset from public available domain databases (just like the examples discussed in SPSS ANOVA practice). Dataset source suggestions: 2. Perform statistical analysis (descriptive+inferential). The goal is to retrieve statistical knowledge from the dataset. You can use SPSS/PSPP/EXCEL software 3. Write up a short report (10-25 pages) to discuss the purpose of the study, what statistical methods (tests) used and results obtained. REPORT FORMAT 1. Introduction 2. Literature Review 3. Methodology 4. Results and Discussion 5. Conclusion
Give an example of estimators (or estimates) that are (a) unbiased and efficient, (b) unbiased and inefficient, and (c) biased and inefficient.
Bullying,” according to noted expert Dan Olweus, “poisons the educational environment and affects the learning of every child.” Bullying and victimization are evident as early as preschool, with the problem peaking in middle school. Suppose you are interested in the emotional well-being of not only the victims but also bystanders, bullies, and those who bully but who are also victims (bully-victims). You decide to measure anxiety in a group of bullies and a group of victims using an 18-item, 5-point anxiety scale. Assume scores on the anxiety scale are normally distributed and that the variances of the anxiety scores are the same among bullies and victims. The group of 23 bullies scored an average of 40.1 with a sample standard deviation of 10 on the anxiety scale. The group of 28 victims scored an average of 46.8 with a sample standard deviation of 11 on the same scale. You do not have any presupposed assumptions about whether bullies or victims will be more anxious, so you formulate…
4. Straight As now, healthy later A study by Pamela Herd of the University of Wisconsin-Madison found a link between high-school grades and health. Analyzing data from the Wisconsin Longitudinal Study, which has tracked the lives of thousands of Wisconsin high-school graduates from the class of 1957, Herd found that students with higher grade-point averages were more likely to say they were in excellent or very good health in their early 60s. Does this mean people will live healthier lives if they increase their GPA? Explain.47
Which of the following is true about assessing affective constructs such as leadership, attitudes, and sportsmanship? Group of answer choices affective constructs are difficult to assess because of their subjective nature. Affective constructs are an important part of the physical education curriculum Affective constructs should be both taught and assessed in a reliable and valid manner All of the above are true.
1 a) Hair color is an True False example of a qualitative data.
1. Eric is interested in investigating the relationship between "happiness" and "helping behavior". He proposes to send the self-administration questionnaire to his friends for data collection. What is the data collection technique used in Eric's study? Please state ONE advantage and ONE disadvantage for this technique Which type of relationship is expected to find in Eric's study (correlation or causation)? Suggest the possible result of this study. How will you interpret the result?
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