Question

In an experiment with 21 subjects assigned to the treatment group and 23 to the control group, the researcher suspects that the new drug results in a greater average reduction in blood pressure. What does the computed two-sample t-statistic indicate?

A) The new drug does not result in a greater average reduction in blood pressure.
B) The new drug results in a greater average reduction in blood pressure.
C) The new drug and the old drug have similar effects on blood pressure.
D) Insufficient data to draw conclusions about the drug effects.

Answer 1

The computed two-sample t-statistic indicates whether the new drug results in a greater average reduction in blood pressure compared to the control group.

Step-by-step explanation:

The computed two-sample t-statistic in this experiment indicates whether the new drug results in a greater average reduction in blood pressure compared to the control group. To determine this, the researcher would conduct a hypothesis test using the two-sample t-test. If the calculated t-statistic is significantly different from zero and has a negative value, it would indicate that the new drug results in a greater average reduction in blood pressure. Therefore, the correct answer is B) The new drug results in a greater average reduction in blood pressure.