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What is measured by the numerator of the z-score test statistic?
Wiki User
∙ 11y ago
The z-score, for a value z, is the probability that a Standard Normal random variable will have a value greater than z.
Wiki User
∙ 11y ago
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What is the p value of a test statistic of 1.369?
The answer depends on what the test statistic is: a t-statistic, z-score, chi square of something else.
If you select a large enough sample size can you reject any null hypothesis?
The simple answer is no. This depends on a lot of factors such as alpha which determines the critical value and the absolute value of the difference between the claim and sample data. Mathematically speaking, all things being equal, the larger the sample size the larger the absolute value of the test statistic. The formula for the test statistic mean with sigma known is shown below. You can substitute values in and perform the mathematics. The larger the sample size, the larger the Z value; but note if the numerator is small, even a small denominator will not produce a large Z value. In fact, the numerator could be zero which would make the test statistic zero. Z = (Xbar - μxbar)/(σ/√n) (formula from Elementary Statistics by Mario F. Triola)
How do you find p value with test statistic and critical value?
Normally you would find the critical value when given the p value and the test statistic.
What is the meaning of Sampling distribution of the test statistic?
Given any sample size there are many samples of that size that can be drawn from the population. In the population is N and the sample size in n, then there are NCn, but remember that the population can be infinite. A test statistic is a value that is calculated from only the observations in a sample (no unknown parameters are estimated). The value of the test statistic will change from sample to sample. The sampling distribution of a test statistic is the probability distribution function for all the values that the test statistic can take across all possible samples.
What is test statistic?
This is used in statistic to know whether to accept or reject a null hypothesis or alternative hypothesis
What does the numerator of the z score test statistic measure?
The numerator of the z-score test statistic measures the points earned on the test. The denominator measures the amount of possible points that could have been earned.
What is test statistic. Why do you have to know the distribution of a test statistic?
A test statistic is used to test whether a hypothesis that you have about the underlying distribution of your data is correct or not. The test statistic could be the mean, the variance, the maximum or anything else derived from the observed data. When you know the distribution of the test statistic (under the hypothesis that you want to test) you can find out how probable it was that your test statistic had the value it did have. If this probability is very small, then you reject the hypothesis. The test statistic should be chosen so that under one hypothesis it has one outcome and under the is a summary measure based on the data. It could be the mean, the maximum, the variance or any other statistic. You use a test statistic when you are testing between two hypothesis and the test statistic is one You might think of the test statistic as a single number that summarizes the sample data. Some common test statistics are z-score and t-scores.
What addresses the questions of what a test measured and how well it measured it?
Validity
What does the test statistic measure?
The test statistic is a measure of how close the sample proportion is to the null value.
What is the p value of a test statistic of 1.369?
The answer depends on what the test statistic is: a t-statistic, z-score, chi square of something else.
What is being measured as the sleep test is conducted?
Your brain waves are measured.
What is the difference between 2 sample z test statistic and 2 sample t test statistic?
erwtwertgrtewh
What test is used to measured the hcg in urine or blood?
pregnancy test
How is vitamin K deficiency measured?
Vitamin K status is measured by the prothrombin time test
What is the conclusion if the test statistic is the same as the critical value?
Any decision based on the test statistic is marginal in such a case. It is important to remember that the test statistic is derived on the basis of the null hypothesis and does not make use of the distribution under the alternative hypothesis.
What is the difference between estimate and statistic?
statistic is a test used to test a hypothesis andestimation is finding the cost before it has been actually manufactured
What is the difference between statistic and an estimate?
statistic is a test used to test a hypothesis andestimation is finding the cost before it has been actually manufactured
