How To Calculate Z Score or Standard Score
In Excel?
Hi, welcome in this article we will explain step by step how to calculate Z score in excel, equation formula of Z score calculation and what Z score.
What is Z Score?
Z Score it is called as standard score and
it is measured the distance from mean value of a data series and the unit of
measurement is sigma.
Z Score equation formula?
Z Score calculation in excel step by step process?
Method A
For
example, purpose we have choose these following data table for calculation of Z
score or standard score.
Step 1: Now we need to calculate the mean or average data of sales by using Average function as shown in the below figure.
Step 2:
Now press the enter to get the average of the sales.
Step 3: Now we need to calculate the standard deviation data of sales by using Standard Deviation function as shown in the below figure.
Step 4: Now press the enter to get the average of the sales.
Step 5:
Now we need to calculate x-u by using the formula
in the next cell of each data as shown in the below figures.
Step 6:
Use below formula in excel cell to calculate.
Step 7:
Now press the enter key to get the value.
Step 8:
Now copy the same formula and paste next to each cell
of data or drag down to apply the formula in the next cell of each data as showed
in the figure.
Step 9:
Now we need to calculate the Z sore or standard score
net to each cell by using the formula showed in below figure.
Step 10:
Now press the enter key to get the Z Score value.
Step 11:
Now copy the same formula and paste next to each cell
of data or drag down to apply the formula in the next cell of each data to get
Z score of each data as showed in the figure.
Method B
Method B is the easiest method and reduced
the time of calculation. Method B will be continued from Step 5 of the Method A:
For example, purpose we have choose these
following data table for calculation of Z score or standard score.
Step 1:
Now we need to calculate the mean or average data of sales by using Average function
as shown in the below figure.
Step 2:
Now press the enter to get the average of the sales.
Step 3: Now we need to calculate the standard deviation data of sales by using Standard Deviation function as shown in the below figure.
Step 4:
Now press the enter to get the average of the sales.
Step 5: Now
we need the calculate the Z Score directly by using the (STANDARDIZED)
formula into the next cell as shown in the below figure.
Step 6: Now
press the enter key to get the Z score value.
Step 7: Now
copy the same formula and paste next to each cell of data or drag down to apply
the formula in the next cell of each data to get Z score of each data as showed
in the figure.
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