Sample Size Calculator in Excel

Why Choose QI Macros ?

Affordable - Just $ 369 USD per license
- Less with Quantity Discounts
- No Recurring Annual Fees
- No Charge for Technical Support

Easy to Use
- Adds New Tab to Excel's Menu
- Creates a Chart in Seconds
- PC / Mac: Excel Excel 2013-2021, Office 365

Trusted / Accurate
- 100,000 Users in 80 Countries
- Save Time vs Writing Formulas
- Our Formulas Are Tested