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To conduct a t test for independent means ideally the populations should be both normally distributed and have the same?
Wiki User
∙ 14y ago
The other assumptions are listed in the related link. The answer you are looking for is the same variance or standard deviation.
Wiki User
∙ 14y ago
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Why a t-test is conducted?
we conduct a t-test to see if the means of two different populations are statistically different from each other.
How to conduct Mann-Kendall test for trend analysis?
by using this formula where y=data values at times i and j and n=length of the data set and Under the null hypothesis that yi are independent and randomly ordered, the statistic S is approximately normally distributed when n≥8, with zero mean and variance as follows: The standardized test statistic ZS is computed by: Decide on a probability level of significance (95% typically) The trend is said to be decreasing if ZS is negative and the computed probability is greater than the level of significance. The trend is said to be increasing if the ZS is positive and the computed probability is greater than the level of significance. If the computed probability is less than the level of significance, there is no trend. you can use Excel to compute the equations. Tq
What are the police units?
The answer is different for different places. In Portland, Oregon, there is an 'independent police review' committee in addition to the standard internal affairs department. More generally, serious investigations in to the conduct of a police officer(s) are usually handled by an entirely separate police agency. This means that a city or county police department may be investigated by the state police, or that any department may be investigated by the F.B.I. The FBI would also normally investigate federal civil rights cases.
How many syllables in conduct?
The word conduct has two syllables. The syllables are con-duct.
What does conduct in math terms mean?
Hjhvjjbv
When was Independent Police Conduct Authority created?
Independent Police Conduct Authority was created in 1988.
What is a guest conductor?
Someone who normally does not conduct that group but conducts that piece.
Where is it possible to find sites which conduct one day sales?
There is a huge number of websites that conduct one day sales. Websites that conduct one day sales are normally easy to recognise and identify - normally including words such as 'one day' and 'sale' in their URL.
How long does it take for homedepot to conduct a background check?
Depends on what kind of background check they conduct. Normally its 24-72 hours.
What is the use Of A copper wire?
To conduct electricity and is normally found in most power wires.
What dose independent mean?
an independent variable will not change with the amount of matter present. Think of it as being independent of the amount of material that is there
Why a t-test is conducted?
we conduct a t-test to see if the means of two different populations are statistically different from each other.
Which stage of scientific method would dependent and independent variables be most important?
Design and conduct an experiment
What metals can't conduct electricity?
By definition, a solid metal, including liquid mercury, in its elemental form should conduct electricity. Under what condition a metal cannot conduct electricity? Normally when a metal is oxidized, the result is highly resistive, but then the oxide film (such as rust) is no longer considered metallic. Some metals, such as sodium, don't normally exist in its elemental form in nature. If these metals are somehow kept out of trouble (air), they too should conduct electricity. ==================================
Is water highly conductive?
Pure water does not conduct electricity. However, since it is almost impossible to have pure water, anything wet will normally conduct electricity. Water almost always has some salts in it, and that provides the free electrons required to conduct electricity.
Does Independent Auto Insurance have a website to conduct business?
Independent Auto Insurance is a company that is a private insurance offering group. They are a little more expensive than the national brands like Progressive. They also do have a website.
What is an independent country?
An independent state, or independent nation (they mean the same thing, really) is a state that does not owe allegiance in any way to any other state. It is free to do all the things that independent states can do. It can conduct business and international trade, it can declare war and conclude peace, make its own laws and have its own government.
