CONFIDENCE

Returns the confidence interval for a population mean, using normal distribution.

Syntax

CONFIDENCE(α; sd; size)

α: The desired significance level, between 0 and 1. It also determines the confidence level, which equals (1 - α)*100%. Eg., 0.02

sd: The known standard deviation of a normal distribution. It must be greater than 0. Eg., 1.5

size: The size of a sample from the specified distribution. Eg., 20

Examples

Formula	Result
=CONFIDENCE(A2;B2;C2)	0.780280798
=CONFIDENCE(A3;B3;C3)	0.391992797
=CONFIDENCE(A4;B4;C4)	0.736104537

Get a hands-on experience of the function in the embedded range below.

Possible Errors

Errors	Meaning
#N/A!	The function could not find the value it was asked to look for. Commonly occurs in VLOOKUP and similar functions.
#NAME!	The function name is incorrect or invalid. The given defined name (if any) is invalid. There is a typo in the defined name used in the function. Double quotes are missing for text values in the function. Colon missing in a cell range reference.
#VALUE!	The given argument's data type is incorrect or invalid. For example, the function =DATE(A1:A3) will return a #VALUE error when a text value is present in the range.
#REF!	The given cell reference is incorrect or invalid. This error may occur when a cell/range has been deleted, moved, or pasted over.
#NUM!	The value of α is not between 0 and 1. The value of sd is less than 0. The value of size is less than 1.

Similar Functions

ZTEST

Access your files securely from anywhere

Zoho CRM Training Programs

Learn how to use the best tools for sales force automation and better customer engagement from Zoho's implementation specialists.

Redefine the way you work

with Zoho Workplace

Start your free trial

Zoho DataPrep Personalized Demo

If you'd like a personalized walk-through of our data preparation tool, please request a demo and we'll be happy to show you how to get the best out of Zoho DataPrep.

Create, share, and deliver

beautiful slides from anywhere.

Get Started Now

Zoho Sign now offers specialized one-on-one training for both administrators and developers.

BOOK A SESSION

Zoho Workerly Home
Forums
Connect With Us:

Zoho Recruit Home
Forums
Connect With Us:

Start tracking your website metrics today

Use PageSense to understand what your visitors are looking for, how they are behaving, and where they are facing problems on your website.

Ready to improve your website's performance?

Install the PageSense code snippet on your site in a matter of minutes and start collecting in-depth data about the website visitors to grow your business.

Track and measure every business goal

Set up goals in PageSense to measure every single action performed by visitors on your website like button or link clicks, form submissions, and page engagements.

Understand the customer journey on your website

Create funnels in PageSense to quickly see which pages visitors use to enter your website, where they navigate to next, and which pages they decide to leave without converting.

Visualize your visitor's behavior with color codes

Set up heatmaps in PageSense to see where users have clicked more, how far they've scrolled, and on which parts of a page they've spent the most time using color-coded patterns in reports.

Measure customer engagement with your web forms

Use form analytics in PageSense to see how people interact with different fields in your form, whether they complete the form successfully or not, and where exactly they drop out on your form.

Record real visitor interactions on your website

Use session recordings in PageSense to watch a video of all the visitor actions performed on your website including the pages they navigate, the buttons they click, the UX issues they face, and more.

Test and optimize webpages for better conversions

Run A/B or Split URL tests in PageSense to figure out which version of your web page works best for your business and results in the best conversion rate.

Give each customer a unique website experience

Use personalization in PageSense to deliver customized versions of your website for every individual customer based on their demographics, local weather, browsing history, and more.

Grow your business through customer feedback

Run polls on your website using PageSense to understand what your customers think about your products/services and what needs improvement on your site.

Send timely updates that customers love

Use web push notifications in PageSense to schedule and notify your customers about an upcoming flash sale, product releases, promotional coupons, and a lot more that can spark conversions on your website.

Advertise your business to website visitors

Use pop-ups in PageSense to instantly grab the attention of visitors by showing attractive signup offers, coupon code discounts, or email newsletters that can eventually convert them into subscribers.

Access more advanced settings in PageSense

Use PageSense's advanced features like creating mutually exclusive groups, enabling cross-domain tracking, configuring customized project JS, and more to get deeper insights about your website.

Try easy-to-use extensions

Download the PageSense extension app available for your web browser with a few clicks and start collecting all of your required website metrics in real time.

Discover your favorite integrations with PageSense

Get a deeper look at your website's data by seamlessly integrating PageSense with a host of popular third-party apps like Google Analytics, Mixpanel, Intercom, and more.

Quick Links	Workflow Automation	Data Collection
Web Forms	Enterprise	Begin Data Collection
Interactive Forms	Workplace	Data Collection App
Offline Forms	Customer Service	Accessible Forms
Digital Forms	Marketing	Forms for Small Business
HTML Forms	Education	Forms for Enterprise
Contact Forms	E-commerce	Forms for any business
Lead Generation Forms	Healthcare	Forms for Startups
Wordpress Forms	Customer onboarding	Order Forms for Small Business
No Code Forms	Construction	RSVP tool for holidays
Free Forms	Travel
Prefill Forms	Non-Profit
Intake Forms	Legal
Form Designer	HR
Card Forms	Food
Assign Forms	Photography
Translate Forms	Real Estate
Electronic Forms
Notification Emails for Forms	Alternatives
Holiday Forms	Google Forms alternative
Form to PDF	Jotform alternative
Email Forms CRM Forms Embeddable Forms Drag and Drop form builder HIPAA Forms Encrypted Forms