The systematic method of obtaining and analyzing accurate information of a population is called data collection. A survey is a standard method of data collection that involves collecting information from a target human population about their experience, opinion, or knowledge of a product, service, or process. The responses are recorded and interpreted. The most common survey examples are written questionnaires, face-to-face or telephonic conversations, focus groups, and electronic (e-mail or website) surveys.
For instance, the Well-Being Index is a survey that aims at following the trends of U.S. residents regularly. Questions are asked to get feedback on life evaluation, emotional health, physical health, healthy behavior, work environment, and basic access. Finally, the data analysis of the collected data is done.
Surveys are also used to obtain customer feedback on products and services, evaluate the progress in a project, assess consumer expectations, or obtain employee satisfaction. For example, when a company launches new software, it surveys its customers based on a few questionnaires to know its feedback.
从样本中收集数据是有效统计分析最关键的部分。
调查是数据收集的常用方法之一。在这里,从目标人群中抽取的个体很少,并且获得了有关他们对产品、服务或过程的经验、观点或知识的信息。对响应进行记录和解释。
例如,考虑一种新香水被引入市场。进行了一项调查,要求参与者以 0 到 10 的等级对香味进行评分,0 表示他们讨厌它,10 表示他们喜欢它。这些回答被汇总起来,以得出市场对香水的接受程度。
标准的调查方法是面对面互动、书面问卷、焦点小组或电话访谈。
调查通常用于获取客户对产品和服务的反馈、评估项目进度、评估消费者期望或获得员工满意度。
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