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what condition we will use wilcoxon sign test

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Q: When to use Wilcoxon signed-rank test?
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What is the level of measurement for the mean math scores of students who take math in the morning compared to those who take math in the afternoon?

If the raw math scores are available for all of the students then you could probably apply a t test to the results. Alternatively you could use a Wilcoxon rank sum test. The difficulty you face is that, without a measure of the variability in the scores you cannot be sure that the difference in the means is due to actual difference or just variability. To get that measure you need th raw scores.


How do you decide whether to use a z test or a t test when testing a hypothesis about a population mean?

You use a z test when you are testing a hypothesis that is using proportions You use a t test when you are testing a hypothesis that is using means


Does standard deviation effect the alpha level?

Yes.For some tests, such as the Fisher F-test, the test statistic is an estimate of the variance. If the alpha level was not affected, the test would be no use at all!Yes.For some tests, such as the Fisher F-test, the test statistic is an estimate of the variance. If the alpha level was not affected, the test would be no use at all!Yes.For some tests, such as the Fisher F-test, the test statistic is an estimate of the variance. If the alpha level was not affected, the test would be no use at all!Yes.For some tests, such as the Fisher F-test, the test statistic is an estimate of the variance. If the alpha level was not affected, the test would be no use at all!


What are the example of inferential statistics?

Mean, variance, t-statistic, z-score, chi-squared statistic, F-statistic, Mann-Whitney U, Wilcoxon W, Pearson's correlation and so on.


How would you use symbolically in a sentence?

Use a symbolically pattern to pass the test.

Related questions

What is the birth name of Henry Wilcoxon?

Henry Wilcoxon's birth name is Harry Frederick Wilcoxon.


When was Frank Wilcoxon born?

Frank Wilcoxon was born in 1892.


When did Frank Wilcoxon die?

Frank Wilcoxon died in 1965.


How tall is Henry Wilcoxon?

Henry Wilcoxon is 6' 4".


What nicknames did Henry Wilcoxon go by?

Henry Wilcoxon went by Biff.


What is Henry Wilcoxon's birthday?

Henry Wilcoxon was born on September 8, 1905.


When was Henry Wilcoxon born?

Henry Wilcoxon was born on September 8, 1905.


When did Henry Wilcoxon die?

Henry Wilcoxon died on March 6, 1984 at the age of 78.


How old was Henry Wilcoxon at death?

Henry Wilcoxon died on March 6, 1984 at the age of 78.


How old is Henry Wilcoxon?

Henry Wilcoxon was born on September 8, 1905 and died on March 6, 1984. Henry Wilcoxon would have been 78 years old at the time of death or 109 years old today.


What is Breslow-Gehan-Wilcoxon Test to compare kaplan curves?

This test evaluates differences between study groups, it allows weighting of time points by the number of cases at risk at each time point


What has the author Henry Wilcoxon written?

Henry Wilcoxon has written: 'Lionheart in Hollywood' -- subject(s): Biography, Motion picture actors and actresses