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The rejection region for a hypothesis is the set of values such that if the null hypothesis is true, then the probability of observing a value for the test statistic (the z-score) for a random variable that may be assumed to have a Normal distribution, is at least as great as the value actually observed is less than by chance. The latter is an arbitrarily selected value called the p-value - often 5% or 1%.

Note that z-scores may be used only if the random variable is approximately Normally distributed - not otherwise.

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The rejection and non rejection regions are divided by the?

The rejection and non rejection regions are divided dividing point. critical value. point of no return. rejection value


If the F statistic is greater than 1.0 the rejection region is in the left tail if the value is less than 1.0 the rejection region is in the right tail?

The F statistic is used in ANOVA and regression analyses to compare variances. If the F statistic is greater than 1.0, it suggests that the variance between groups is larger than within groups, and the rejection region would typically be in the right tail of the distribution. Conversely, if the F statistic is less than 1.0, it indicates that the variance within groups is larger, placing the rejection region in the left tail. Thus, the correct interpretation is that the rejection region for the F test is in the right tail regardless of the value being greater or less than 1.0.


What is the value of a 'z' score of 0?

A z-score of 0 means the value is the mean.


What does a negative z-score mean?

z-score of a value=(that value minus the mean)/(standard deviation). So if a value has a negative z-score, then it is below the mean.


How do you find out the z-score?

z-score of a value=(that value minus the mean)/(standard deviation)


What is meant by a z-score?

z-score of a value=(that value minus the mean)/(standard deviation)


How is the z-score depicted?

z-score of a value=(that value minus the mean)/(standard deviation)


What is the meaning of a negative z score?

A negative z score is a value that is less than the mean value.


What is the value of score?

20


What does denominator of z-score measure?

The standard deviation.z-score of a value=(that value minus the mean)/(standard deviation)


What does a z-score of -1.5 mean?

z-score of a value=(that value minus the mean)/(standard deviation). So a z-score of -1.5 means that a value is 1.5 standard deviations below the mean.


The value of a score as in four score and seven years ago?

20