MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
expand_more
expand_more
format_list_bulleted
Related questions
Question
Discuss the three types of longitudinal research methods. When is each method an appropriate choice of data collection? Discuss the difficulties of each method.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 3 steps
Knowledge Booster
Similar questions
- In a study on speed control, it was found that the main reasons for regulations were to make traffic flow more efficient and to minimize the risk of danger. An area that was focused on in the study was the distance required to completely stop a vehicle at various speeds. Use the following table to answer the questions. МPH Braking distance (feet) 20 20 30 45 40 81 50 133 60 205 80 411 Assume MPH is going to be used to predict stopping distance. Which of the two variables is the independent variable? Which is the dependent variable? What type of variable is the independent variable? What type of variable is the independent variable? Is there a linear relationship between the two variables? Is the relationship positive or negative? :: The dependent variable is miles per hour :: The independent variable is miles per hour : The dependent variable is braking distance : The independent variable is braking distance :: Miles per hour is a continuous quantitative variable :: Miles per hour is a…arrow_forwardSuppose you are interested in studying the relationship between the amount of exercise children have in the week and their academic performance. Match each way of addressing this research question with it correct research strategy A. factorial research strategy (both independent variables are non-experimental) B. non-experimental research strategy C. correlational research strategy D. factorial research strategy (one independent variable is non-experimental and one independent variable in experimental) 1. Compare academic performance in children who report more than 10 hours of exercise every week compared to children Jwho report less than 5 hours of exercise select - 2. Look for a relationship between the amount of exercise children report receiving in the week and their academic select v performance 3. Randomly assign children to a 1 semester after school fitness or arts and crafts program. Compare change in academic Uperformance at the start and end of the semester in children who…arrow_forwardRead through this scenario and look at the data that was collected. State the null and all possible research hypotheses. Review the results below (I used SPSS) and answer the questions that follow. Scenario: A researcher wants to see if gender and / or income affects the total amount of help given to a stranger who is sitting on the side of a busy road with a sign asking for help. The independent variables are gender, income, and the interaction of gender and income. The dependent variable is total help. He wants to know if one or both factors – or the interaction of the two - affects the total amount of help offered. Because he is analyzing two independent variables (gender and income), he used a factorial ANOVA. His results show the main effect of each of the independent variables on the dependent variable (total help) and the interaction effect. The researcher is using a 95% confidence interval which means that he wants to be at least 95% sure that his independent variables…arrow_forward
- Describe a hypothetical study for which multiple regression with more than two predictor variables would be an appropriate analysis. Your description should include one dependent variable and three or more predictors.arrow_forwardWhich of the following will help to mitigate confounding? A. Multiple regression modelB. RandomizationC. StratificationD. All of the abovearrow_forwardThe Equal Opportunity Commission is investigating questions around unequal pay rates and discriminatory remuneration in various industries. The Pay Equity tab in the excel workbook contains information on 100 employees from a particular industry. Information includes: Salary ($) Gender Years of Education Years of Experience Division of employment Age Run a multiple regression analysis looking at the relationship between salary and years of education and years of experience. What proportion of variation in salary can be explained by these two variables? Conduct a test of the overall significance of the model. Test both the Education and Experience variables separately. Do both contribute to explaining the variation in salaries? Write out the estimated equation and interpret all coefficients. Salary (in $) Education (years) Experience (years) 20860 11 4 30200 16 1 31240 12 1 36860 12 8 44760 14 4 46690 19 3 47400 15 1 47880 14 3 50620 13 6 50690 14 4…arrow_forward
- Are cigarettes bad for people? Cigarette smoking involves tar, carbonmonoxide, and nicotine. The first two are definitely not good for aperson's health, and the last ingredient can cause addiction, refer to Table 2-16, which was taken from the web site maintained by the Journal of Statistics Education. For more information, visit the web site of the Journal of Statistics Education. Follow the links to the cigarette data. Health: Cigarette Smoke Use the data in Table 2-16 to make a stem-and-leaf display for milligrams of carbon monoxide per cigarette smoked.Are there any outliers?arrow_forwardWhat are the characteristics of a research question? How important is the research question to planning a study?arrow_forwardSeedlings of an annual plant were split into two equal treatment groups; in one group, extra fertilizer was provided, and in the other group (the control group), no additional fertilizer was added. The numbers of seeds and the average weight of the seeds from each individual plant were monitored, and these data were plotted (each point represents an individual plant). Which statement best describes the results of this study? Control With fertilizer 450 400 400 350 350 300 300 250 250 200 200 130 130 100 100 50 50 10 20 30 40 50 70 10 20 30 40 50 Number of seeds Number of seeds O A. Trade-offs between seed size and seed number exist in both the control and the fertilizer groups, and these trade-offs are of roughly equal magnitude. B. Trade-offs between seed size and seed number exist in both the control and the fertilizer groups, but these trade-offs are much larger in the fertilizer group. C.A trade-off between seed size and seed number exists in the control group but not in the…arrow_forward
- Salaries for administrative assistants range from $32,000 per year to $67,000 per year. Salaries for executive chefs range from $58,000 per year to $110,000 per year. Which of these two professions has the largest amount of variation? If the variability is high, what does this mean in terms of getting a salary on the higher end of the range?arrow_forwardThere are two basic types of data in social science research: quantitative and qualitative. Which of the following statements is False? A. When done well, neither is easier to do than the other. B. Qualitative and quantitative research are often complementary, but no research should use both qualitative and quantitative data collection and analysis. C. Almost every broad topic can be studied qualitatively or quantitatively. D. In general, the specific research question that one develops within a topic area determines the type of data and method needed to answer it.arrow_forwardAnswer for the following questionarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- MATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons Inc
Probability and Statistics for Engineering and th...StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage Learning
Statistics for The Behavioral Sciences (MindTap C...StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage Learning 
Elementary Statistics: Picturing the World (7th E...StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSON
The Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. Freeman
Introduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman
MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc
Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning
Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning
Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON
The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman