A negative z score is a value that is less than the mean value.
The z value corresponding to a number below the mean is Negative.
no, z score can be negative but a probability is a always positive between 0 and 1.
The Z value is negative, but area is always positive.
It means that it is less than the 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.
A negative z score is a value that is less than the mean value.
The z value corresponding to a number below the mean is Negative.
Yes. If a score is below the mean, the z score will be negative.
Yes.
A negative z-score indicates that the observed value (or statistic) was below the mean. In non-directional tests, a negative z-score is just as likely as a positive one.
Use the context: if the variable should be greater than the mean then z is positive and if less than the mean, it should be negative.
Below the mean
no, z score can be negative but a probability is a always positive between 0 and 1.
Nothing particular, since z is symmetric about zero. Half the time z is negative.
|z - 8| or whichever of (z - 8) and (8 - z) that is non-negative.
z value looks at standard deviations away from the mean. if its tests scores, a higher positive z value means they are higher away from the mean in a positive direction the opposite is true for a negative z score.