CODEWITHSUNDEEP
matlabconfidence-interval
user927325
user927325

Reputation: 11

plot 95% confidence interval of 20 data points in Matlab

If amount of data points is small (i.e. 20 data points). Do I need to check its normality before calculating confidence interval?

Can anyone suggests a rigorous process to plot 95% confidence interval?

Thanks!

Upvotes: 1

Views: 374

Answers (1)

Yacine Mahdid
Yacine Mahdid

Reputation: 731

With so few data points and if you don't know if the distribution is normal I would look into using bootstrap confidence interval. It's a non-parametric method so you are not assuming normality. The MATLAB function bootci implements this method.

Here is the documentation for bootci.

Upvotes: 2

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