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If group a has a higher mean than group b the research hypothesis is directional or non directional?
Wiki User
∙ 16y ago
Whether your alternate hypothesis is directional (one-sided) or non-directional (two-sided) is largely up to you but must be determined before you conduct your experiment, not after. It's not defined by the outcome.
Wiki User
∙ 16y ago
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What is the difference between a null hypothesis and a research hypothesis?
The null hypothesis is the default hypothesis. It is the hypothesis that there is no difference between the control group and the treatment group. The research hypothesis proposes that there is a significant difference between the control group and the treatment group.
How do you determine directional or non-directional alternate hypotheses?
Whether you frame your alternative hypothesis, Ha, as one-sided (directional) or two-sided (non-directional) is really up to you, but should be decided before you look at the data. It will affect the calculation of your p-value and ultimately your conclusions from the test. In most cases there will be a sound, obvious reason for choosing one or the other.For example, if you were testing the effectiveness of a new anti-cholesterol drug you'd probably only be interested in testing whether the average of the experimental group was lower than the control group. So Ha is directional, or one sided. If on the other hand you were testing, for example, whether a Group A performed better on a test than Group B, your Ha would be that the average of Group A does not equal Group B. That is, you're not sure, before you run the test, whether Group A should perform better or worse than Group B. So your test is non-directional, or two-sided.
What are the steps in the statistical steps?
The preliminary step is to research the issue and form your hypothesis. Then, you need to find your sample group.
What are the preliminary steps in statistical study?
The preliminary step is to research the issue and form your hypothesis. Then, you need to find your sample group.
What is the difference between a hypothesis and a theory such as the Theory of Gravitation or the Theory of Evolution?
a hypothesis can also be called an educated GUESS. while a theory can be considered as a group of guesses with particular proper research
What is the method of biological research?
we are having a lot of biological methods for research like firstly we do observations then deductions are made after that they are systematically arranged then the formation of hypothesis take place after that finally we come an answer which we made a methods for example if we have to made research regarding malaria then we will made firstly two groups name them as group and group b .group is. group of healthy people and group b is of unhealthy people.After coming to circumstances we will finally conclude the main reason what who is responsible of this disease
What is the next step in the scientific method following making a prediction?
analyzing the data.
What does a hypothesis become after it is tested and proven?
A hypothesis, or group of hypotheses, that is accepted as consistently valid is a theory. Either a hypothesis or a theory can be ultimately disproven. One definition of a theory is an accepted hypothesis.
When was Lifted Research Group created?
Lifted Research Group was created in 1999.
When was Programming Research Group created?
Programming Research Group was created in 1965.
When was Small Group Research created?
Small Group Research was created in 1970.
When was Universal Research Group created?
Universal Research Group was created in 2007.
