document.write( "Question 1121317: What if your sample is less than 30 and you don't know the population mean or standard deviation, but you know the sample stats, x-bar and s, and that the sample is from a normal population.
\n" ); document.write( "Is there still a method for standardizing data?
\n" ); document.write( "What other distribution could be used? \n" ); document.write( "

Algebra.Com's Answer #737171 by Boreal(15235) $\"\"$ $\"About$

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a t-distribution with degrees of freedom n-1
\n" ); document.write( "This works when the population may be considered normally distributed and the standard deviation of the sample, s, may be considered a decent estimator (or unbiased outright) of the population standard deviation. \n" ); document.write( "

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