Answered: Define how programs or policies can be…

Name: Define how programs or policies can be evaluated using experiments or
Uploaded: 2024-03-20T07:07:37.000Z
Channel: Bartleby
Description: Define how programs or policies can be evaluated using experiments or quasi-experiments?

Math

Statistics

Define how programs or policies can be evaluated using experiments or quasi-experiments?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

8a) A researcher aims to assess the associative impact of coffee consumption on death rates from heart diseases. For this objective the researcher collects data from 10 countries and intends to use methods of regression. The following table shows data on average per capita coffee consumption and heart disease rate in a random sample of 10 countries. a) State which of the given variables is the outcome variable. b) Provide a scatterplot for the objective of interest using R software, and state if a simple quadratic regression model would be suitable for this data. c) Perform the simple quadratic regression modeling using R software. Provide the fitted model equation and interpret the intercept (if any).
Match the description on the right with the correct term on the left regarding types of forecasting methods. 1. Econometric, input-output, and simulation are techniques used with this type of forecasting method, which assumes that the variable to be forecasted is related to one or more intrinsic variables. Causal Methods 2. The Delphi technique, market surveys, and life-cycles analogy are techniques used with this type of forecasting method, which relies on the judgment of individuals or Qualitative Methods Time-Series Methods groups. 3. Moving averages and exponential smoothing are techniques used with this type of forecasting method, which assumes that time is the only important variable.
Nana AB. supplies a range of computer hardware and software to 2000 schools within a large municipal region of Spain. When Nana AB. won the contract the issue of customer service was considered to be central to the company being successful at the final bidding stage. The company has now requested that its customer service director creates a series of graphical representations of the data to illustrate customer satisfaction with the service. The following data has been collected during the last six months and measures the time to respond to the received complaint (days).52434661563832 87783496745423 5632861281325253 3445213142125321 437662127336712 7889261074782332 2621567891851512 1556452145262134 2812672324432565 238872178547679 The customer service director has analysed this data to create a grouped frequency table and plotted the histogram. From this he made a series of observations regarding the time to respond to customer complaints. He now wishes to extend the analysis to use…
One of the main issues that censuses are not considered as a feasible option for studies beside being logistically demanding is: Select one: a. Populations contains too many variables and cannot be analyzed. b. Censuses are not accurate because we cannot use statistics with it. c. None of the mentioned reasons is a valid reason. d. Samples are easier to work with than census that is what makes use samples. e. Populations are dynamic and very rarely stand still.
A clinical psychologist is interested in determining which type of therapy is in fact more effective at treating depression. The psychologist randomly assigns 1/3rd of the participants to receive cognitive behavioral therapy, 1/3rd to receive the psychodynamic therapy and 1/3rd to receive humanistic therapy. Following the therapy sessions, the psychologist gives the members of each group the Beck Depression Inventory and compares the scores of the three groups. 1 What hypothesis test would be most appropriate for answering this research question and why? 2 If the researcher found that at least one of groups differed, what type of follow-up test would be most appropriate? 3 What are the independent and dependent variables (if any)?
Westminster Financial has released a summary of investor and investment package information from the past fiscal year. During this time, Westminster provided a choice among 12 pre-designed investment packages. The investment packages were classified according to two variables: riskiness of investment package chosen ("Risky", "Moderate/mixed", and "Conservative") and age of investor ("Under 35", "35-49", or "50+"). Suppose that we're interested in the possible relationship between the age of the investor and the riskiness of the investment package the investor chose. The following contingency table gives a summary of the information released by Westminster regarding age and riskiness of investment package for 150 investors. In the cells of the table are the respective observed frequencies, and three of the cells also have blanks. Fill in these blanks with the frequencies expected if the two variables, riskiness of investment package chosen and age of investor, are independent. Round…
If gender is the independent variable of a quasi-experiment, this experiment must have a between-subject design. Group of answer choices True False
A study was conducted to compare oral and intravenous antibiotics in patients with lower respiratory tract infection. Patients were rated in terms of their final outcome after their assigned treatment (delivery route of antibiotic). The outcomes were classified as: cure (1), partial cure (2), antibiotic extended (3), antibiotic changed (4), death (5). Note that this variable is categorical and ordinal. For the oral delivery group, the numbers of patients falling into the five outcome levels were: 74, 68, 16, 14, and 9, respectively. The following are some graphical summaries. FREQUENCY FREQUENCY of OUTCOME 80 70 60 50 40 30 20 10 0 1 2 3 4 5 OUTCOME 28 68 1 74 16 HA 14 9 What are the names of the two types of graphics and what data is each of them displaying to us?
6.
a) What is the strongest independent variable for the model predicting self-control for respondents living in good neighborhoods? and living in bad neighborhoods? b) In every situation above, the standard errors for the model predicting self-control for respondents in good neighborhoods are lower than the standard errors predicting self-control for respondents in bad neighborhoods. What might be one reason why this might occur?
Management of a major company has made the following assumptions regarding their consumer profile. Over 60% of all shoppers are women Less than 40% of our customer primarily make purchases through online resources The average age of the purchasers of product B is below 45 years. The average weekly purchase of the top selling product A exceeds $50. The company hired market researchers to determine the validity of their consumers' demographic assumptions. The researchers conducted survey and focus groups to evaluate the purchasing pattern of the company's current consumers. In a survey of 400 consumers, 252 respondents were women and 148yrespondents indicated they purchase the company's products online. The average age of the respondents was 44 years with standard deviation of 10 years. The average weekly purchase of top selling products A and B by the respondents were $52 with standard deviation of $10.5 and $60 with standard deviation of $22.0 respectively. Determine which of the…
1. What is the independent variable? How is it operationally defined? 2. What type of variable is the independent variable (situational, response, participant, or mediating)? 3. What is the dependent variable? How is it operationally defined? 4. What type of variable is the dependent variable (situational, response, participant, or mediating)? 5. Is it a nonexperimental or experimental design? Why? For each of the kinds of validity below, what concerns about that type of validity do you have with this study? If you don’t have any concerns about that kind of validity, then explain why you think the study does a good job addressing it. If you would need additional information to evaluate that kind of validity, specify what you would need to know. A. Construct validity B. Internal validity C. External validity D. Statistical conclusion validity