Mathematics · Statistical Inference
Consider the following statements regarding sampling and hypothesis testing: (a) The sample mean is an unbiased estimator of the population mean. (b) For small samples, the sample variance (s 2 calculated with divisor 'n') is an unbiased estimator of the population variance. (c) If we reject the null hypothesis when it is actually true, we commit a Type-I error. Which of the above statements are correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1(a), (b) and (c)
- 2(b) and (c) only
- 3(a) and (c) only✓
- 4(a) and (b) only
Correct answer
(a) and (c) only
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