0
What must be present in order to say that a correlation exists?
Wiki User
∙ 10y ago
A relationship between variables
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
What would a correlation of 35 would be called?
An error! Correlation must be between -1 and 1.
Is the Correlation Coefficient of 35 strong?
The correlation coefficient must lie between -1 and +1 and so a correlation coefficient of 35 is a strong indication of a calculation error. If you meant 0.35, then it is a weak correlation.
What does a correlation coefficient value of negative two indicate?
A mistake in calculations! ;) If the calculations are done correctly then the sample correlation must lie within the closed interval [-1, 1].
Properties of regression coefficient-statistics?
8.7.4 Properties of Regression Coefficients:(a) Correlation coefficient is the geometric mean between the regression coefficients. (b) If one of the regression coefficients is greater than unity, the other must be less than unity.(c) Arithmetic mean of the regression coefficients is greater than the correlation coefficient r, providedr > 0.(d) Regression coefficients are independent of the changes of origin but not of scale.
What would an example of a null and alternative hypothesis look like for a one right tail test with a rejection region at an alpha of 1 percent?
It depends on the statistical test that is being applied. Different tests have different critical values. For the sake of definiteness let's say that you plan to measure the IQs of 30 people using two different paper-and-pencil tests. In advance of your study you decided that the null hypothesis would be that there is no correlation between the two tests and that the alternative hypothesis would be that a positive correlation of the results of test B on those of test A would be accepted at level p=0.01 (or 1%). You proceed with your measurements and you make your correlation calculation. Meanwhile you have consulted the necessary tables to find that the critical value for the correlation statistic based on 30 points is 0.306. This means that you must accept the null hypothesis if the sample correlation coefficient is less than or equal to 0.306. You can accept the alternative if the sample statistic is greater than 0.306.
What must be present in order to say that correlation exist?
A relationship between variables
Can a correlation problem also be a correlation problem?
Yes, it must.
What must an IDE hard drive have in order for an AGP slot?
The IDE drive has no direct correlation to the AGP bus.
What condition must exists in order for energy to flow from the atmosphere to Earth?
Energy
What would a correlation of 35 would be called?
An error! Correlation must be between -1 and 1.
What must be present in order for a fog to happen?
high humidity
What must be present in order for clouds to form?
a condensation nuclei
Is the Correlation Coefficient of 35 strong?
The correlation coefficient must lie between -1 and +1 and so a correlation coefficient of 35 is a strong indication of a calculation error. If you meant 0.35, then it is a weak correlation.
What are the necessary conditions to show causation in science?
There are three conditions that must be present to show causality: 1) there must be a strong correlation between the proposed cause and effect, 2) the proposed cause must precede the effect in time, and 3) the cause has to be present whenever the effect occurs (Burns & Grove, 2001, p. 791).
What must be present in order for pitch to be created and notes to be played?
vibration
Which process must occur in order for the scientific community to be ensured that no bias exists in the experiment?
Peer Review.
What must be present in order for asubstance to changev from one state of matter to another?
In order for a substance to change, a certain temperature or pressure must be reached.
