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A hypothesis is the first step in running a statistical test (t-test, chi-square test, etc.)
A NULL HYPOTHESIS is the probability that what you are testing does NOT occur.
An ALTERNATIVE HYPOTHESIS is the probability that what you are testing DOES occur.
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What is power function in statistics?
In statistics, we have to test the hypothesis i.e., null hypothesis and alternative hypothesis. In testing, most of the time we reject the null hypothesis, then using this power function result, then tell what is the probability to reject null hypothesis...
What is an alternative hypothesis?
with the alternative hypothesis the reasearcher is predicting
What is a statistical hypothesis?
I think you are asking: What is hypothesis testing in the field of statistics. See: http://en.wikipedia.org/wiki/Statistical_hypothesis_testing
What is inferential data?
There is no inferential data. There is inferential statistics which from samples, you infer or draw a conclusion about the population. Hypothesis testing is an example of inferential statistics.
When the null hypothesis is true then the t statistics will have an average value of?
There can be no proper answer since it is not known whether the alternative hypothesis is one sides or two sided.
What is power function in statistics?
In statistics, we have to test the hypothesis i.e., null hypothesis and alternative hypothesis. In testing, most of the time we reject the null hypothesis, then using this power function result, then tell what is the probability to reject null hypothesis...
How do scientists use statistics when they test a hypothesis?
When testings a hypothesis, statistics can be used to calculate the chances or probability of getting a result
What is an alternative hypothesis?
with the alternative hypothesis the reasearcher is predicting
If we reject the null hypothesis what can we conclude about the alpha risk?
If we reject the null hypothesis, we conclude that the alternative hypothesis which is the alpha risk is true. The null hypothesis is used in statistics.
What is a statistical hypothesis?
I think you are asking: What is hypothesis testing in the field of statistics. See: http://en.wikipedia.org/wiki/Statistical_hypothesis_testing
Does a hypothesis have to be true?
No. In fact, in statistics, an hypothesis is a statement whose truth is to be tested. In science, an hypothesis is a way of summarising a body of information that is capable of being shown to be false.
Is a hypothesis considered to be a fact?
A hypothesis is a proposition to be proven or disproven by experiment or, in the case of statistics, to be assessed for its likelihood based on the numbers available.
What is an alpha error?
An alpha error is another name in statistics for a type I error, rejecting the null hypothesis when the null hypothesis is true.
Functions and limitations of statistics?
definition and meaning of statistics
What is the meaning of vital statistics in Telugu?
statistics definition
What has the author Herman J Loether written?
Herman J. Loether has written: 'Inferential statistics for sociologists' -- subject(s): Sampling (Statistics), Sociology, Statistical hypothesis testing, Statistical methods 'Descriptive and inferential statistics' -- subject(s): Sampling (Statistics), Sociology, Statistical hypothesis testing, Statistical methods 'Descriptive statistics for sociologists' -- subject(s): Sociology, Statistical methods
Is the critical region the values of the test statistics for which the null hypothesis will reject?
The null hypothesis will not reject - it is a hypothesis and is not capable of rejecting anything. The critical region consists of the values of the test statistic where YOU will reject the null hypothesis in favour of the expressed alternative hypothesis.
