Inference for Comparing Two Sample Means
The table below summarizes data from an experiment comparing the effects of the DASH and TLC diets on blood pressure reduction. The study used two large, independent samples of patients.
Blood Pressure Reduction Data:
| Diet | Mean Reduction (mmHg) | Standard Deviation |
|---|---|---|
| DASH | 7 | 2 |
| TLC | 5 | 2.5 |
Based on these sample results, which of the following is the most plausible inference?
A
The results are inconclusive without further p-value analysis.
B
The TLC diet produces a statistically significantly greater reduction in blood pressure than the DASH diet.
C
There is no significant difference between the two diets.
D
The DASH diet produces a statistically significantly greater reduction in blood pressure than the TLC diet.
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