The normal distribution is a bell shaped curve that is symmetrical about the mean. You can use functions to calculate normal distribution probability in Excel. ➤ Normal distribution is a ...
A lognormal distribution represents the distribution of a random variable whose logarithm is normally distributed. You can create a log normal distribution in Excel using built-in functions. ➤ ...
A test for normal distribution compares various statistics of the data to determine if the data follows a normal distribution. You can perform several test for normal distribution in Excel. ➤ ...
A percent frequency distribution displays the percentage of observations within a certain interval or category compared to the total number of observations. You can use Excel functions and features ...
A contingency table or crosstabs shows the frequency distribution of two categorical variables. You can use Excel features and functions to easily make a contingency table. ➤ A contingency ...
A 95% confidence interval means – 95% of the standard normal distribution lies between an interval bounded by two Z scores. To calculate Z score 95% confidence interval in Excel, you can use ...
The Fisher test evaluates any significant association between two categorical variables. We can perform the Fisher test in Excel using the HYPGEOM.DIST function to get the one-tailed and two-tailed P ...
A frequency distribution shows the frequency or number of observations within different intervals. You can use Excel functions, features, and add-ins to make a frequency distribution table. ➤ ...
The Z score indicates how many standard deviations a data point is located from the mean value of the dataset. You can use an Excel function or a simple formula to calculate the Z score. ➤ The ...
The Z critical value is the boundary value that determines whether a sample data point is statistically significant in the population. It defines the rejection area for the null hypothesis. We can ...
The Friedman test uses ranks to compare more than two groups. It is used when normality and equal variance conditions are not satisfied. Although there are no built-in functions to perform the ...
A T-test determines any significant difference between two groups by comparing their mean values. You can use built-in functions and add-ins to do a T-test in Excel. ➤ T-test compares two ...