ADM 2304 Lecture Notes - Lecture 16: Manufacturing Resource Planning, Null Hypothesis, Sport Utility Vehicle

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lilachippopotamus32

13 May 2017

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Candidate for one-way anova as we have one factor gasoline type and one response variable gas mileage. But a potentially confounding factor that impacts gas mileage is vehicle type. If we did a completely randomized design, our samples for each factor may have different types of vehicle which would bring into question any conclusion we might draw. One way of controlling for this is to divide the population of cars up by size and randomly assign one car from each size to each gasoline type (essentially creating a. In this way we ensure that the size of the car does not have an impact on the outcome. Suppose there were only two gasoline types regular and premium. The matching would be based on vehicle type so that we would make sure that each sample has equivalent vehicle types in it so that we can be sure that the vehicle type is not affecting the results.

Related Questions

Select two types of measurement validity

Compare and contrast the two types of validity you have chosen.

Explain the pros and cons of each type.

Now that you have examined validity, letâs focus on reliability.

Select two of the ways to determine measurement reliability.

Define and explain how each type can be applied to a research plan.

Understanding both validity and reliability provides a foundation for apply to research.

From the remaining two ways of determining validity, select which one (or two) you could apply to your own research.

Explain why you think this is the best way (or ways) of determining validity in your research. Include the reliability factor, as well.

Bakground on my study:

Purpose: Single subject research was designed to be able to study a single individual or a number of individuals as whole. It is considered scientifically valid research that works though using the scientific method. As in any research, it is used to define effectiveness of an intervention and understand supporting clinical change.

Variables: In a study were an autistic child could be monitored at home, while have tantrums. These emotional outbursts could be measured by the time that it takes for the tantrums to be over and how the intensity of these outbursts by using at least a 5 data point level.

Plan: Through using the ABAB design with A design being the baseline of the tantrums and B design showing the intervention with a phase out or ramp up phase. This happens during change in conditions. Once the intervention is being removed and another baseline is obtained, a second intervention can be used. This will help further evaluate the effectiveness of the intervention. The pros are that this data can be put onto a graph, so that progress can be easily monitored and evaluated. The cons are to remember that these are people that we are dealing with and not just the results of an experiment.

Data Collection: Involve caretakers, teachers and parents in the behavioral plan. The staff assisting could record the time of tantrums, the duration by minutes. The intensity should be recorded by using a rating system of 0 being no intensity, at all and 10 being the worst that one could imagine.

Implementing and intervention would include playing soothing music during the childâs behavior. The music should reduce the stress felt by the child and soothe and lessen the outburst of the child. Also, teaching the child how to stop and breath would be another intervention that could be brought into play.

Pros and Cons: The pros are that hopefully we can find a way to reduce the intensity or the number of tantrums that are exhibited by the child. The cons are that the intervention itself, does not tell us what is the cause of the emotional outbursts.

pearwolf621

Human body can be described by many means â one of them â it is relatively big vessel with complex body fluid. For diagnostic purpose it is very complicated to detect insignificant number of biomarkers on very early stages of pathological process. This article, present pioneering method to initiate and conduct diagnostic by researching body fluids.

**With additional research provide additional examples of scientific way of dealing with solutions to improve functionality of human life. (QUESTION - This is exactly what is witten on my assignment)**

Analyzing human blood for a very low virus concentration or a sample of water for a bioterrorism agent has always been a time-consuming and difficult process. Researchers at the Georgia Institute of Technology and Emory University have developed an easier and faster method to detect these types of target molecules in liquid samples using highly porous, micron-sized, silica beads. The researchers developed a technique to simultaneously or sequentially add optical and magnetic nanoparticles into the beads. Adding magnetic nanoparticles allows the use of a magnetic field to attract and easily remove the beads from a liquid sample. âThese nanoparticles enter the pores of the microbeads so quickly and so completely -- essentially more than 99 percent of the nanoparticles go into the pores of the beads,â explained Shuming Nie, the head researcher on the project and the Wallace H. Coulter Distinguished Chair in Biomedical Engineering and director of Emory-Georgia Tech Nanotechnology Center. The beads are mixed in a liquid such as urine. Viruses, proteins or other biomarkers are captured on the bead surface. After the beads are removed from the liquid, optical imaging is used to determine the concentration of a specific protein or virus in the liquid sample based on the number of proteins or viruses attached to the surface of the beads. Tushar Sathe, a graduate student in the Wallace H. Coulter Department of Biomedical Engineering at Georgia Tech and Emory University, described the process of creating these novel beads and their clinical applications on Jan. 20 at SPIE Photonics West in San Jose, California. The work was also published in the Aug. 15 issue of Analytical Chemistry. The technology involves embedding fluorescent quantum dots and magnetic iron oxide nanoparticles inside the beads to create dual-modality magneto-optical beads. Nie and Sathe synthesize the quantum dots in different colors by varying their size, giving the beads a unique optical signature. Having different color beads allows the researchers to detect several target molecules at the same time in the same liquid sample. âWe use the quantum dots to create a set of beads that are unique and can be distinguished from each other. Itâs similar to bar-coding -- once you barcode the beads and put them in the urine or blood sample, you can remove them and decode what proteins or viruses have attached to individual beads based on their spectral signature,â explained Sathe. The process of creating these beads is quite simple, according to Sathe. The surface of the beads contains a long-chain carbon molecule that makes the beads hydrophobic, meaning they repel water. The beads are dissolved in butanol and washed several times. Then the beads are counted and optical and magnetic nanocrystals are added to the suspension either simultaneously or sequentially. After 15-20 minutes, the butanol is removed to get rid of any remaining nanoparticles that didnât get incorporated into the beads and the beads are washed with ethanol. Then the beads are coated with a polymer that creates a hydrophilic surface on the beads. This allows the beads to be functionalized by adding antibodies or DNA molecules to the surface that will capture the target molecules. These beads are dual-function -- both optical and magnetic -- but according to Sathe, more functions can be added to the beads. âAdding them is as easy as adding the nanoparticles into the solution. You just have to make sure the nanoparticle surface is hydrophobic so that it interacts with the beads,â said Sathe. The primary biomedical applications for this new technology will be to detect cancer and neurological diseases by identifying certain molecules present in human blood or urine that indicate specific diseases, according to Nie, who is also professor of biomedical engineering, chemistry, materials science & engineering, and hematology and oncology at Emory University and the Georgia Institute of Technology. âSome of the biomarkers for Alzheimerâs disease have very low concentrations in the blood so you need highly sensitive techniques that can find a specific molecule to diagnose this disease,â explained Nie. âOur technique could also be used to monitor therapeutic response. For example, if the viral level decreases in samples taken at later dates, then we know the drug is probably working.â This new technology allows the researchers to analyze very low concentrations of target molecules. âInstead of analyzing a liter of sample where the concentration could be very dilute and you might not see the target molecule youâre looking for, you can let the beads capture the molecules on their surface, remove them from the liquid, and then just measure the number of molecules attached to the beads,â said Nie. This ongoing research is funded by the National Cancer Institute, the Department of Energyâs Genomes to Life (GTL) Program, the Department of Defense and the Georgia Cancer Coalition, a public-private partnership established by the Georgia General Assembly in 2001.

ADM 2304 Lecture Notes - Lecture 16: Manufacturing Resource Planning, Null Hypothesis, Sport Utility Vehicle

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