Calculate your T-Value by taking the difference between the mean and population mean and dividing it over the standard deviation divided by the degrees of freedom square root.

How to find the Square Root in Excel To find the square root in Excel, follow these steps: Make sure that you have a number in a cell. Select a cell to display the result.

Here are 3 easy ways to calculate the square root of a number in Microsoft Excel - using SQRT function, POWER function and Exponential formula.

Scientific and mathematical formulas frequently use exponents and square roots, and you can create a function to compute the square, cube, or square root of a value by using the formula creator.

To calculate the RMS voltage, you take a number of voltage readings, square them, add them all together, and then divide by the number of entries in the average before taking the square root: .

Learn what Value at Risk is, what it indicates about a portfolio, its pros and cons, and how to calculate the VaR of a portfolio using Microsoft Excel.

For Higher Physics revise how to determine peak voltage and frequency from oscilloscope screenshots. Revise the calculation of r.m.s. and peak values.