How to Calculate Confidence Interval in Excel - Statistics for Excel

This video walks step by step through how to calculate confidence intervals in Excel.
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[@fiona_niamh]

literally thank you so much my stats project has been kicking my tail this was so helpful

[@MdMokhlasurRahman]

Nice and easy plaining. Thanks a lot.

[@Astar-AoK]

How did you get the 90 standard dev please?

[@Rasimkubukeli]

Thanks very much for this explanation ,but they was an error with the lower limit

[@zan3zan344]

Why did we assume the standard deviation was 90?

[@AaDe13]

how do we know the data is normally distributed?

[@spyxxx566]

hi, if I want a better accurate Confidence Level, I would just increase cell H6 from 90% to higher % and the rest of the cells & formulas should take care itself? and would this work with either Standard Deviation Population or Standard Deviation Sample?