How To Find The Z Value In Excel

Excel Z Score (Table of Contents)

• Z Score in Excel
• How to Calculate Z Score in Excel?

Z Score in Excel

Z Score is used for statistical measurement. It is also known equally a standard score. The value of the Z score is the measurement of the number of standard deviations a specific number is above or below a mean.

The below formula is used to calculate the Z score:

Z = (x- µ) / σ

Where the supplied arguments are equally below:

• Z = It denotes the Z score value.
• X = The value to be standardized.
• µ = Mean of the given data fix values.
• σ = Standard divergence of the given data set up values.

How to Calculate Z Score in Excel?

Calculation of Z Score in excel is very unproblematic and like shooting fish in a barrel. Allow's sympathise how to calculate the Z score in excel with some examples.

You can download this Z Score Excel Template here – Z Score Excel Template

Excel Z Score – Example #1

We take given marks of some students every bit below:

At present for calculating Z Score, we demand to find out the Mean and standard deviation of the given dataset in excel.

Hateful (or Average) calculation:

For finding the average, follow the below steps:

Step one – Go to the Formulas tab. Click on More Functions options under the Functions Library section.

Pace two – At present click on the Statistical functions category from the drop-down list. It will once more open a list of functions. Click on the Boilerplate role every bit shown below.

Step 3 – It will open a Part Arguments dialog box. Enter the Range from Cells B4:B13 under field Number1 and click on OK.

• Information technology volition requite you the Boilerplate or Mean value.

Standard Difference calculation:

For finding the standard deviation, follow the below steps:

Step 1 – Go to the Formulas tab. Click on More Functions under the Function Library section.

Pace 2 – Click on the Statistical Office category from the drop-down list. It will open a list of functions. Click on STDEVPA from the list every bit shown in the below screenshot.

Step 3 – Information technology will open a Function Arguments dialog box. Enter the cells range from B4:B13 under field Value1 and click on OK.

• It volition give you the standard deviation value.

At present we take to summate the Z score values in excel. For this, follow the beneath screenshots:

• Go to the FORMULAS tab. Click on the More Functions pick under the Function Library section.

• Then a driblet-down list of functions will open up. Click on Statistical functions from the list. It volition open a list of functions. Click on STANDARDIZE function from the list every bit per the below screenshot.

• Then it will open a Function Arguments dialog box. Enter the Cell value B4 under field X.

• Enter the Mean value in the second field, Mean, which is mentioned under Prison cell B15.

• Enter the Standard Deviation value in the third field, Standard_dev, which is mentioned under Jail cell B16. Click on OK.

• The result will be as given below.

• Elevate this formula for the rest values, and it volition pop upward the Z score values in excel equally shown below:

Caption

• If nosotros clarify the data, the highest Z score value is 2.082778, which is the Z score value of Nick Brown, who has achieved the highest score in the exam.
• The smallest Z score value is -0.98521, which is the lowest Z score value of Adrian Steve, who has achieved the lowest score in the exam.
• At that place can exist positive and negative values in Z scores.
• Students who have accomplished scores more than the hateful value go positive Z scores.
• Students who have achieved scores less than the hateful value get negative Z scores.
• If the Z score is zero, that ways the educatee's score is the same as the mean value.

Excel Z Score – Example #two

We take given the below data values.

To calculate the Z score or standard score, we demand to make up one's mind the kickoff hateful and standard divergence in excel.

• Allow'southward employ the AVERAGE formula for calculating the mean of the given dataset.

• Information technology will requite y'all the Average or Mean value.

For calculating standard deviation, let's apply the STDEVPA function for the given data values as per the below screenshot.

• It will requite you the standard deviation value.

• Now nosotros volition calculate Z score values in excel. For this, apply the STANDARDIZE function for the given information values as per the below screenshot.

• The result will be as given beneath.

• Drag this formula for the rest values. The Final issue is given below:

Every bit we can see, the positive value of Z scores are higher than the mean value, and the negative value of Z scores are lower than the mean value.

Things to Remember

• The Z score tells u.s. a number of standard deviations that are away from the mean of the distribution or dataset.
• The data values which are higher than the mean Z score will be a positive value.
• Data values which are below the hateful Z score will be a negative value.
• The z score value is probably used for statistical analysis.

Recommended Manufactures

This has been a guide to Z Score in Excel. Here we discuss how to summate Z Score in excel along with practical examples and a downloadable excel template. You can as well go through our other suggested articles –

1. Excel AVERAGE Role
2. Standard Deviation in Excel
3. Z TEST in Excel
4. Excel Frequency Distribution

Source: https://www.educba.com/z-score-in-excel/

Posted by: fultonvellut.blogspot.com

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