Mathematics · Statistics
The 95% confidence interval of a sample mean can be calculated by which of the following formulas? A. Sample mean ± 1.96 (Standard deviation) B. Sample mean ± 1.96 (Standard Error) C. Sample mean ± 1.96 (Standard Error / √Sample size) D. Sample mean ± 1.96 (Standard deviation / √Sample size) E. Sample mean ± 1.96 (Variance / √Sample size) Choose the correct answer from the options given below:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1B and C only
- 2A and C only
- 3B and D only✓
- 4A and E only
Correct answer
B and D only
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