CFA考試
報考指南考試報名準(zhǔn)考證打印成績查詢備考資料考試題庫

重置密碼成功

請謹(jǐn)慎保管和記憶你的密碼,以免泄露和丟失

注冊成功

請謹(jǐn)慎保管和記憶你的密碼,以免泄露和丟失

當(dāng)前位置:首頁CFA考試視頻知識正文
當(dāng)前位置:首頁CFA考試CFA視頻正文

Selection of Sample Size

幫考網(wǎng)校2020-08-07 15:01:14
|
The selection of sample size depends on various factors such as the research objective, population size, level of accuracy required, budget, and time constraints. Here are some methods for selecting a sample size:

1. Probability Sampling: In this method, each member of the population has an equal chance of being selected for the sample. The sample size can be determined using statistical formulas based on the population size, level of confidence, and margin of error.

2. Non-Probability Sampling: In this method, the sample is selected based on the researcher's judgment, convenience, or availability. The sample size is determined based on the research objective and the resources available.

3. Power Analysis: This method is used to determine the sample size required to detect a significant effect in a study. Power analysis considers factors such as the effect size, level of significance, and statistical power to determine the sample size.

4. Pilot Study: Conducting a pilot study can help determine the appropriate sample size for a larger study. The pilot study can provide information on the variability of the data, the feasibility of the study design, and the resources required.

In general, a larger sample size provides greater precision and accuracy in the results. However, the sample size should be balanced with the available resources and the research objectives.
幫考網(wǎng)校
|

推薦視頻

推薦文章

  • 暫無文章
婺源县| 潮安县| 玉环县| 商都县| 兴义市| 义乌市| 吉木乃县| 蓝田县| 黑龙江省| 那坡县| 镇沅| 延津县| 武功县| 巴林右旗| 贡嘎县| 彩票| 安庆市| 宜州市| 封丘县| 诏安县| 赤水市| 庆阳市| 长治市| 巢湖市| 封丘县| 克什克腾旗| 民乐县| 天长市| 鄂托克前旗| 靖州| 新乐市| 任丘市| 普兰店市| 芦溪县| 桃园市| 南投县| 永福县| 广州市| 乌兰察布市| 吐鲁番市| 特克斯县|