Commerce Short Question | Gkseries

Q.

A researcher wants to test the significance of the difference between the average performance of the two small sized samples when the information of the population standard deviation is not available, which one of the following hypothesis-testing is suitably used ?

[A] Z-test
[B] Chi-square test
[C] F-test
[D] t-test
Answer & Explanation

Answer: t-test

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