How do you find the negative z-score on a table?

To find the area on the left of the mean, you will have a negative Z Score and use a negative Z Table. Similarly, to find the area on the right of the mean, you will have a positive Z Score and use a positive Z Table.

How do you use Z table if Z is negative?

If you have a negative z-score simply use the same table but disregard the negative sign, then subtract the area from the table from 1.

Can Z table negative?

Z-scores may be positive or negative. Negative Z Score: It is a value below the mean for the group of values. Z is negative when the raw score is below the mean, positive when above.

Can a normal distribution have negative values?

A normal distribution can have negative values for some or all of its data points. A normal distribution can also have a negative mean. However, the standard deviation of a normal distribution is always positive – it is never negative or zero.

When the z-score value in a normal distribution is negative the body is on the right hand side of the distribution?

2. Because the normal distribution is symmetrical, the proportions on the right-hand side are exactly the same as the corresponding proportions on the left-hand side. For a negative z-score, the tail of the distribution is on the left side and the body is on the right. For a positive z-score the positions are reversed.

What does it mean if the mean of a normal distribution is negative?

In short, yes, a negative mean value is feasible with a curve which is normally distributed. It simply means that the values and frequency for the data you are analyzing had enough negative values that the mean was negative.

Is a standard normal distribution always positive?

The mean can equal any value: The mean of a normal distribution can be any number from positive to negative infinity. 6. The standard deviation can equal any positive value: The standard deviation of a normal distribution can be any positive number greater than 0. 7.