1) Determine whether the evaluated group is a population or a sample. a) Based on a randomly selected group of 500 patients with high cholesterol, it was found that 67% have heart disease. Is this a population or a sample? Explain your answer. b) An investigation of 150 randomly selected local restaurants concluded that 42% of
36) Chebyshev's Inequality According to the US Census Bureau the mean of the commute time to work for a resident of Boston, Massachusetts, is 27.3 minutes. Assume that the standard deviation of the commute time is 8.1 minutes to answer the following: (a) What minimum percentage of commuters in Boston has a commute time within 2
Just need your input. 1. You are the principal of a large urban high school and wish to do a parent survey to determine how parents feel about same-sex classes. Your budget does not allow you to send out surveys to all parents. You are considering one of two procedures. Please critique each procedure for its likelihood of get
Assess the use of qualitative data to support business decision making. Consider different types of qualitative data collection and analysis methods and the ways in which they can support business decision making and strategies.
Create a 1/2 fraction factorial design for 4 factors and 8 runs using the design generator D =ABC. (The defining relation is I = ABCD.). Present your design as a table showing the coded levels of the 4 factors in standard order. Construct a table showing the alias structure of the design.
Do the results justify the conclusions? Why or why not? Children who come further down in the birth order have, on average, lower IQs than those born earlier in the birth order (e.g. First born children vs. 5th born children). Therefore birth order determines intelligence. (Answer provided in less than 100 words.)
I need help developing a survey that will be used to gauge people's preferences for Dairy Queen, considering they are thinking of extending their hours of operations or open up a drive-through. The survey must be appropriate for this research. Can you provide me with some pointers?
Explanation of micro-aggregation in the context of statistical disclosure control or anonymization of micro data.
5) Select the study that is most appropriate and EXPLAIN WHY it is most appropriate for the study. a) Is the aspirin produced by a particular pharmaceutical company better than that of a competitor at relieving headaches? Which of the following would best be used to study this: 1) a case-controlled observation; 2) an observatio
SPC: what is the difference between multi-stream and multivariate processes?
Given this scenario, formulate a research question that could be investigated with less than US $10,000. An elder-care facility has a problem with self-esteem of its clients. This is affecting the facilities monthly income as some clients are finding alternative housing options. As a result the facility is looking at dropping a
1. How does technological advancement affect the ability to collect data? Does this advancement increase or decrease the chance for errors? 2. What are some critical decisions involved in selecting an appropriate measurment scale? How might these decisions influence the research design? 3. What is the importance of pretest
Oxytocin is a naturally occurring brain chemical that is nicknamed the "love hormone" because it seems to play a role in the formation of social relationships such as mating pairs and child-parent bonding. A recent study demonstrated that ocytocin appears to increase people's tendency to trust others. Using an investment game, t
What types of Methods of Data Collection would work with this topic? The effects of parental involvement on student's academic success.
Qualitative and quantitative Data Collection Planning Dr. Morris is a new administrator of your facility. She is interested in getting a better understanding of how services are currently delivered as well as how effective the current processes are for achieving patient and employee satisfaction. You have been asked to help
2. In a research project intended to gather data on the effects of type of study methods on examination performance, participants are randomly assigned to one of two conditions. In one condition they study alone, using notes they took during class lectures. In a second condition, participants study in interactive groups with not
Many alleged studies are misleading in that the conclusions are often based on undisclosed premises. Parenting books state that an advantage to breastfeeding is that it makes women healthier; what is not stated is that women who breastfeed tend to follow stricter diets, and it is the diets that actually makes them healthier.
1. The table below summarizes results from an experiment in which subjects were classified as diabetic or nondiabetic and then given a treatment. After the treatment, they were again classified as diabetic or nondiabetic. Which combinations of before treatment/after treatment categories will yield discordant pairs? Befor
Case Study: Dr. Zak developed a test to measure depression. He sampled 100 university students to take his five item test. The group of students was comprised of 30 men and 70 women. In this group, four persons were African American, six persons were Hispanic, and one person was Asian. Zak's Miraculous Test of Depression is pr
We sent reporters Debbie Jones to Springfield, Mall to find out what Springfield residents think about town council's proposed legislation for renaming the public library in honor of the late Mayor Jackson McCarthy. We'll have Debbie's report on the 11:00 P.M. newscast. Comment on the credibility of this 'research'.
1. Provide a description of one method for estimating the reliability and one method for substantiating the validity of a test. 2. Discuss the conditions under which each method is appropriate and/or inappropriate. 3. Explain the importance of reliability and validity.
See attached file. Synopsis of the article including the following: a. Define the business research and its purpose. b. Explain the business problem(s) under investigation. c. Describe the data collection method(s) used in the research project. d. What did the researchers conclude as a result of their research? (1) t
12. A researcher reports an F-ratio with df= 3,36 from an independent-measures research study. a. How many treatment conditions were compared in the study? b. what was the total number of participants in the study?
Please help with the following statistics problem. Provide step by step calculations. A person reads a research study of the effectiveness of perineal exercises in preventing urinary incontinence and notes that the number of subjects in each group is 120. She notes that 20 women experienced episodes of incontinence in the ex
Describe 5 data collection techniques in your own words. Be sure to cite any sources you used. Explain why the examination of collected data is so important.
Define validity and reliability. How can we insure our data is both reliable and valid? Which of these two do you think is the more important? Provide examples to support your reasoning.
A part of our research design is the data collection process. We often do this by sampling. Differentiate between random and nonrandom sampling methods. As part of your response define several random and nonrandom sampling techniques. Also, as part of your response, explain why random techniques are always to be preferred to
As part of our setting up our research design we often do a review of the literature. Define this concept and explain why it is such an important part of our research process.
See attached file. ? Discuss potential challenges to validity and reliability of your research question, data, and analysis. ? Outline steps needed to minimize these challenges.
Part one RMS, Inc. produces three raw materials that are blended together (mixed together) to produce two products: a fuel additive and a solvent base. Each kilogram of fuel additive is a mixture of 2/5 kilogram of material 1 and 3/5 kilogram of material 3. A kilogram of solvent base is a mixture of 1/2 kilogram of material 1,