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t test, because the z test requires knowing the population standard deviation and that's rare. The t test embodies an estimate of the standard deviation.
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Is a paired t-test more powerful than a a test between independent samples a A paired t- test is more powerful because it utilizes information b an independent sample t0-te?
paired t-test is more powerful because it utilizes information
What is the t test used for?
The"t" test, (called the "small 't' test, to distinguish it from the large 'T' test) is a test for deviation from a known norm, using a smaller sample set than the one required by the large T test. It is said to have been developed by the head of quality control at the Guinness Brewery in Ireland.
Difference scores are usually used with a. a t test for a single sample b. a t test for dependent means c. a t test for independent means d. all of the above?
d
When independent sample t test is used?
The Independent Samples T Test compares the mean scores of two groups on a given variable.
How is paired t-test different from a general t-test with two samples?
In a general t-test, there is no relationship between the members of one sample and the other. In a paired t-test they are connected in some way so that they are likely to give similar outcomes. This means that more of the difference between them can be attributed to the "treatment".
What is a t-test?
a t test is used inplace of a z-test when the population standard deviation is unknown.
Is T test similar to Z test?
no t test is similar to z test because t test ie used for unknown observation and z is for the medicne
What is t Test?
t-test is the statistical test used to find the difference of mean between two groups
Is a paired t-test more powerful than a a test between independent samples a A paired t- test is more powerful because it utilizes information b an independent sample t0-te?
paired t-test is more powerful because it utilizes information
What is the t test used for?
The"t" test, (called the "small 't' test, to distinguish it from the large 'T' test) is a test for deviation from a known norm, using a smaller sample set than the one required by the large T test. It is said to have been developed by the head of quality control at the Guinness Brewery in Ireland.
What is a parametric test used to compare the means of two groups?
t-test
How do you spell cattle?
That is the correct spelling of the noun cattle (more often used as plural than singular).
Difference scores are usually used with a. a t test for a single sample b. a t test for dependent means c. a t test for independent means d. all of the above?
d
Can a single t-test compare the means of 3 or more groups?
No, don't use a single t-test to compare the means of 3 or more groups. Use ANOVA.
When independent sample t test is used?
The Independent Samples T Test compares the mean scores of two groups on a given variable.
How is paired t-test different from a general t-test with two samples?
In a general t-test, there is no relationship between the members of one sample and the other. In a paired t-test they are connected in some way so that they are likely to give similar outcomes. This means that more of the difference between them can be attributed to the "treatment".
WHAT IS THE Difference between A t test and chi square?
t test is used when- a) variables are studied b)the size of sample is a small one.(n<30) chi square test is studied when a) attributes are studied
