Q: When writing about a significance level, what kind of writing is best?

Detailed Question -

When writing about a significance level, which of the following is best?

1. levels of significance: 0.05

2. levels of significance: p≤0.05

3. levels of significance: 5

1 Answer to this question

The significance level is denoted by the Greek letter α and is used to indicate the likelihood of the null hypothesis being rejected. The probability of obtaining a specific result is denoted by the letter p (usually italicized). Most studies consider the level of significance to be 5% but this can vary. When p < α, the null hypothesis is assumed to be rejected.

To answer your question, the most common way of writing this is to say that the significance level is 0.05.

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Hope this helps. All the best for your study!