Q: Why is it important to have a large sample size?

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(Apex Learning) A higher sample size gives more accurate results.

A disadvantage to a large sample size can skew the numbers. It is better to have sample sizes that are appropriate based on the data.

Answer D- A higher sample size gives more accurate results- APEX LEARNING

Answer D- A higher sample size gives more accurate results- APEX LEARNING

Answer D- A higher sample size gives more accurate results- APEX LEARNING

A sample size of one is sufficient to enable you to calculate a statistic.The sample size required for a "good" statistical estimate will depend on the variability of the characteristic being studied as well as the accuracy required in the result. A rare characteristic will require a large sample. A high degree of accuracy will also require a large sample.

Yes, but that begs the question: how large should the sample size be?

no

Statistically the larger the sample size the more significant the results of the experiment are. Chance variation is ruled out.

that you have a large variance in the population and/or your sample size is too small

Better the results

The Central Limit Theorem states that the sampling distribution of the sample means approaches a normal distribution as the sample size gets larger — no matter what the shape of the population distribution. This fact holds especially true for sample sizes over 30.