CHISQ.INV

The CHISQ.INV function in Google Sheets calculates the inverse of the left-tailed chi-squared distribution. It's a statistical tool used to find the value at which a specified percentage of the distribution falls to the left, making it essential for hypothesis testing. Dive into our comprehensive guide to master its application.

Parameters

• probability: The probability associated with the chi-squared distribution, between 0 and 1.
• degrees_freedom: The number of degrees of freedom.

Step-by-Step Tutorial

1. Using CHISQ.INV with a probability and degrees of freedom:
   • Example: =CHISQ.INV(0.05, 10)
   • Result: 3.940299932

Use Cases and Scenarios

1. Hypothesis Testing: Determine the critical value for a given significance level and degrees of freedom.
2. Quality Control: Calculate acceptance limits for a process based on a specified confidence level.
3. Statistical Research: Establish threshold values when analyzing categorical data with chi-squared tests.

Related Functions

• CHISQ.INV.RT: Calculates the inverse of the right-tailed chi-squared distribution.
• CHISQ.DIST: Calculates the left-tailed chi-squared distribution.
• CHISQ.TEST: Returns the probability associated with a chi-squared test of independence.

Related Articles

• Understanding Statistical Functions in Google Sheets