母集団が小さすぎて、その研究結果は当てにならないと思うって英語でなんて言うの？

"母集団が小さすぎて、その研究結果は当てにならないと思う" - The population is too small so I don't think those research results will be of use. - I don't think those results will be useful because the population is too small. - Those research results will be unreliable because the population is too small.