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BS Nursing Introduction To Biostatistics
nmdcat.online June 6, 2026

144. A medicinal study aims to estimate the mean reduction in blood pressure for a new drug. If the population standard deviation is known, and the sample size is large, which technical distribution is used for constructing confidence intervals for the mean?

A. T-distribution.
B. Chi-square distribution.
C. Z-distribution (Normal distribution).
✓
D. F-distribution.

📖 Additional Information

  • T-distribution.
  • Chi-square distribution.
  • Z-distribution (Normal distribution).
  • F-distribution.

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