If I want to reduce the variance in the sampling distribution when conducting a t test, what should I do?
Group of answer choices
Increasing sample size.
Raising the alpha level for hypothesis testing.
Measuring the true population variances.
Ensuring that the two samples have the same variance.
Answer:
Increasing sample size.
Explanation:
When we increase the sample size, then the value of the standard error of the mean or the standard deviation of the sampling distribution decreases. This means, when we increase the sample size, then variance in the sampling distribution will be reduce or decrease.
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