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What else can I help you with?
In a field if statistics what is used to predict or test hypothesis?
A statistical model is fitted to the data. The extent to which the model describes the data can be tested using standard tests - including non-parametric ones. If the model is a good fit then it can be used to make predictions.A hypothesis is tested using a statistic which will be different under the hypothesis being tested and its alternative(s). The procedure is to find the probability distribution of the test statistic under the assumption that the hypothesis being tested is true and then to determine the probability of observing a value at least as extreme as that actually observed.
When do we sample when collecting data?
You can sample when carrying out a comprehensive census is not feasible for any reason. It may be because a census would require too many resources (including time), be destructive (eg life span of light bulbs).
What is the importance of collecting vital statistics?
Vital statistics play a part of monitoring the national health information system. The information is the most continuous and complete data that is available to all public health officials. Births and deaths are the two primary vital statistics recorded and they can provide valuable information including life expectancy.
Do you say including I or including me?
including mw
Why do you need to know the Independent and Dependent Variables before you make your hypothesis?
Actually, I believe that you set out your hypothesis first. If your teacher has perhaps told you to set out your variables first, you may wish to direct her towards a reliable source of information like a textbook - all of mine explicitly say that you must first create a hypothesis to know what the variables are to be:HypothesisPredictionInvestigationAnalyse the dataRefine the hypothesis, if necessaryYour teacher is not wrong, but in all truth, the variables are implied by the hypothesis e.g.You notice that the salmon have not returned to your local river this year. Your hypothesis:The salmon have not returned due to abnormally low levels of oxygen in the water, caused by hot water ejected into the river by factories.This implies that the variables should be:Independent: the location of a sample (as you will sample the oxygen levels at different locations)Dependant: the concentration of oxygen in the water at these locationsControlled variables: Time of day, time of year.Therefore, I do not understand how you can possibly define the variables without first defining the hypothesis. Surely it is only possible this way.The only exception would be if you are blindly going about a random experiment. For example, you have been given 20 cm2 of HCl in concentrations of 0.1, 0.2, 0.3, 0.4 and 0.5 mol/dm3 and an excess of NaOH, 0.1 mol/dm3. You have a conical flask, a funnel and a burette (like a long thin cylinder of glass, with a controllable output, whereby you can determine exactly how much of the solution you are adding; similar, but more accurate, than a pipette). What do you do?You say, I am going to titrate this acid and this alkali by measuring the amount of the alkali (the NaOH) which I add to the acid (the HCl) to neutralise it. You do the experiment, collect the data, and present it perhaps in a graph. I won't explain the experiment to you, as it may only confuse you.In this case, you have some meaningless results. You attempt to solve this problem by making a conclusion and saying 'By increasing the concentration of the acid, more alkali is needed to neutralise it.'. Having said this, you will then have conducted an experiment without a hypothesis at all. However, from here, you may create a hypothesis to further the meaning of the experiment so that in future, the experiment can be carried out again, but with different parameters. Your hypothesis may be 'The greater the concentration of any acid, the greater the volume of an alkali needed to neutralise it.' Whereby you would carry the same experiment out, but with different acids etc.. The ultimate effect of the experiment is that you have blindly done one without a hypothesis.You cannot base the hypothesis on anything other than an observation you have made (like the fact that light is reflected by shiny objects, for example). From the hypothesis, you can derive what the variables, including the control variables will be for the experiment.I hope this answers your question.
What is a series of steps followed to solve problems including collecting data formulating a hypothesis testing the hypothesis and stating conclusions?
Scientific Methods is the correct answer.
What is the experimental design procedure?
The experimental design procedure involves several key steps: identifying the research question, formulating a hypothesis, selecting the variables (independent, dependent, and controlled), and determining the experimental groups (control and treatment). Next, researchers outline the methodology, including sample size and randomization, to minimize bias. Data collection and analysis follow, leading to conclusions that either support or refute the hypothesis. Finally, the findings are documented and shared for peer review and replication.
What is the scientific process behind conducting a can crusher science experiment?
The scientific process behind conducting a can crusher science experiment involves the following steps: Formulating a hypothesis: Predicting the outcome of the experiment, such as "increasing the force applied to the can will crush it more effectively." Designing the experiment: Planning how to test the hypothesis, including variables like the amount of force applied and the type of can used. Conducting the experiment: Carrying out the planned procedure, such as crushing cans with different amounts of force and recording the results. Analyzing the data: Examining the results to see if they support the hypothesis, using tools like graphs or calculations. Drawing conclusions: Determining whether the hypothesis was supported by the data and what implications the results have for the original question. Communicating the findings: Sharing the experiment's results and conclusions with others, such as through a written report or presentation.
What is an abstract for a scientific experiment?
An abstract for a science experiment is a short paragraph that summarizes the purpose of the experiment (including the hypothesis), the method used to perform it, the results and the conclusions. (see related link)
Is the cell theory a result of a hypothesis and observation of one person?
The cell theory is not the result of one person's hypothesis and observation, but rather a culmination of contributions from multiple scientists over time. It was developed based on the observations and experiments of multiple researchers, including Matthias Schleiden, Theodor Schwann, and Rudolf Virchow, who all played important roles in formulating the cell theory.
What is true about statistics?
There is not just one "true" fact about statistics. "It is a hard subject" is true about statistics. "It is a form of mathematics" is another true statement.
What is a gun used for?
A variety of uses including, crime, hunting, target shooting, collecting...
What equipment should be used for shell collecting?
You can use all types of equipment for shell collecting including a bucket, a rake, a scoop, a shell basket, and a shovel. Shell collecting can also be fun without any tools at all.
What is a science fair outline?
A basic summary of what you intend to do as your experiment, your hypothesis of what will happen, what process you will go through to perform the experiment, the data you collect and your results, including if this proved your hypothesis or not, and why.
What did astronaughts do on moon?
They did a variaty of things including collecting moon rocks, playing golf and planting flags.
Are linguists in agreement on where the Proto-Indo-European languages came from?
No, linguists do not have a consensus on the exact geographical origin of the Proto-Indo-European language. There are various hypotheses, including the Steppe hypothesis, Anatolian hypothesis, and Armenian hypothesis, but the exact origin remains uncertain.
How many pages does The Happiness Hypothesis have?
There are exactly 333 pages in the book The Pursuit of Happiness including the acknowledgments and prefix. I should know, I wrote it. Sincerely, Chris Gardner
