【實用生產應用app】C.I. of Proportion|最夯免費app

How do you manage this situation?

Partner: Look! this gadget gets 60% satisfaction!

You: Oh, yes. But, is it reliable?

You should be aware that questionnaires are always to done in only part of society.

You need check the confidence interval.

This app can do it.

Simply imput the sample proportion (60%, in the example above), sample size (50 people?), and confidence coefficient (usually 0.95).

Use this and be strong at dealing with data!

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