PRC-2 · Chapter 12 · Question 25 of 55
The 'significance level' (α) in a statistical test represents the maximum allowed probability of committing a:
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: C) Type I error
Explanation
The significance level is the threshold (often 0.05 or 5%) that researchers set as the maximum acceptable risk of rejecting a null hypothesis when it is actually true.
More Probability Distributions MCQs
- Q27What specifically happens to the calculated 'Standard Error of the Mean' as the sample size (n) is increased?
- Q28A 'null hypothesis' (H0) is most commonly used in statistical testing to represent:
- Q29A 'sampling frame' is formally defined in research as:
- Q30According to the Central Limit Theorem, for large sample sizes, the sampling distribution of the means will always approach:
- Q31In standard statistical terminology, what is the precise definition of 'Standard Error'?