Once you have a z score you can look it up in a table and find out the area between the z score and the mean under the standard normal distribution curve (normal curve). Look at our book. Some z score tables give you the area under the curve between the mean and the z-score. In the next step, we will discuss how to calculate Z-score in Excel. Step-by-Step Guide for Calculating Z-Score in Excel. To calculate z-score in Excel, highlight an empty cell and click “Formulas” in the menu bar. Select “Statistical” and choose “Z.TEST”. Z分数可以让你在一组数据中取任意给定的样本，同时确定它高于或低于均值多少个标准差。。要想找出一个样本的Z分数，你就得找出样本的均值、方差和标准差。要计算Z分数，你需要找到样本值和均值之间的差值，然后除以标准差。尽管这个方法有很多步骤，但计算起来相当简单。 观察你的数据 What is the Altman Z Score Spreadsheet? Here is a free Altman Z score spreadsheet you can download and run in excel. It is an excel spreadsheet requiring the use of macros but will automatically pull data from the internet and let you calculate the Altman Z Score with this free spreadsheet. The Altman Z Score. The Altman Z score was formulated A z z -score is a standardized version of a raw score ( x x) that gives information about the rel ative location of that score within its distribution. The formula for converting a raw score from a sample into a z z -score is: z = x −X¯¯¯¯ s z = x − X ¯ s. As you can see, z z -scores combine information about where the distribution is Z-score is measured with reference to standard deviations from the mean. A Z-score of 0 means that the data point is identical to the mean. A negative score means that the data point is below the mean and similarly a positive value means that data point is above the mean. Excel provides us with a built-in function. How to Find a Z-Score in Excel Z-Score in Excel: Overview. A z-score in Excel can quickly be calculated using a basic formula. The formula for calculating a z-score is . z = (x-μ) / σ, where μ is the population mean and σ is the population standard deviation. Note: if you don’t know the population standard deviation or the sample size is Once you have computed your Z-scores, you can interpret them as follows: – Z-score of 0: The data point is equal to the mean value. – Positive Z-score: The data point is above the mean value. – Negative Z-score: The data point is below the mean value. The larger the absolute value of a Z-score, the more it deviates from the mean. .

how to find z score in excel