Statistics In Excel

In the modern data-driven business world, we have sophisticated software dedicatedly to working towards "Statistical Analysis." Amidst all these modern, technologically advanced excel software is not a bad tool to do your statistical analysis of the data. Of course, we can do all statistical analysis using Excel, but you should be an advanced Excel user. This article will show you some basic to intermediate-level statistics calculations using Excel.

#1: Find Average Sales Per Month

The average rate or trend is what the decision-makers look at when they want to make crucial and quick decisions. So finding the average sales, cost, and profit per month is a common task everybody does.

For example, look at the below data of monthly sales value, cost value, and profit value columns in Excel.

So, by finding the average per month from the whole year, we can see what per month numbers are.

Using the AVERAGE function, we can find the average values from 12 months, which boils down to per month on an average.

• Open the AVERAGE function in the B14 cell.

• Select the values from B2 to B13.

• The average value for sales is:

• Copy and paste cell B14 to the other two cells to get the average cost and profit. The average value for the cost is:

• The average value for the profit is:

So, on average, per month, the sale value is $25,563, the cost value is $24,550, and the profit value is $1,013.

#2: Find Cumulative Total

Finding the cumulative total is another set of calculations in excel statistics. Cumulative is nothing but adding all the previous month's numbers together to find the current total for the period.

#3: Find Percentage Share

Out of twelve months, you may have got $1,000,000 in revenue. But, still, maybe in one month, you must have achieved the majority of the revenue, and finding the month's percentage share helps us find the particular month's percentage share.

For example, look at the below data of the monthly revenue.

To find the percentage share first, we need to see what the overall 12 months total is, so by applying the SUM function in Excel, find the overall sales value.

We can use the formula to find the percentage share of each month.

% Share = Current Month Revenue / Overall Revenue

To apply the formula as B2 / B14.

The percentage share for Jan month is:

Note: Make the overall sales total cell (B14 cell) an absolute reference because this cell will be a common divisor value across 12 months.

Copy and paste the C2 cell to the below cells as well.

Apply the "Percentage" format to convert the value to percentage values.

So, from the above percentage share, we can identify that the "Jun" month has the highest contribution to overall sales value, i.e., 11.33%, and the "May" month has the lowest contribution to overall sales value, i.e., 5.35%.

#4: ANOVA Test

Analysis of Variance (ANOVA) is the statistical tool in excel used to find the best available alternative from the lot. For example, if you are introducing four new kinds of food to the market. You gave a sample of each food to get the public's opinion and from the opinion score given by the public by running the ANOVA test. We can choose the best from the lot.

ANOVA is a data analysis tool available in Excel under the "DATA" tab. By default, it is not available. You need to enable it.

Below are the scores of three students from 6 different subjects.

Click on the "Data Analysis" option under the "Data" tab. It will open up below the "Data Analysis" tab.

Scroll up and choose “Anova: Single Factor.”

Choose "Input Range" as B1 to D7 and tick “Labels in first row.”

Select the "Output Range" as any of the cells in the same worksheet.

We will have an "ANOVA" analysis ready.

• All the basic and intermediate statistical analyses are possible in Excel.
• We have formulas under the category of "Statistical" formulas.
• If you are from a statistics background, it is easy to do fancy and important statistical analyses in Excel like T-TEST, Z-TEST, descriptive statistics, etc.