When Testing for a Difference Between the Means of a Treatment

question 72

Essay

When testing for a difference between the means of a treatment group and a placebo group, the computer display below is obtained. Using a 0.05 significance level, is there sufficient evidence to support the claim that the treatment group (variable 1) comes from a population with a mean that is different from the mean for the placebo population?
Explain. $$\begin{array} { | l | l | l | l | } \hline & \text { t-Test: Two Sample for Means } & & \\\hline 1 & & \text { Variable 1 } & \text { Variable 2 } \\\hline 2 & \text { Mean } & 65.10738 & 66.18251 \\\hline 3 & \text { Known Variance } & 8.102938 & 10.27387 \\\hline 4 & \text { Observations } & 50 & 50 \\\hline 5 & \text { Hypothesized Mean Difference } & 0 & \\\hline 6 & \mathrm { t } & - 1.773417 & \\\hline 7 & \mathrm { P } ( \mathrm { T } < = \mathrm { t } ) \text { one-tail } & 0.0384 & \\\hline 8 & \mathrm {~T} \text { Critical one-tail } & 1.644853 & \\\hline 9 & \mathrm { P } ( \mathrm { T } < = \mathrm { t } ) \text { two-tail } & 0.0768 & \\\hline 10 & \mathrm { t } \text { Critical two-tail } & 1.959961 & \\\hline\end{array}$$

Recognize strategies for technology protection in the international business environment.

Comprehend the principles of the act of state doctrine and its implications for international relations and jurisdiction.

Understand the legal frameworks surrounding expropriation and its compliance with international law principles.

Understand and articulate the complexities of multiculturalism in Canada in relation to its First Nations' people.

---

Definitions:

Problem-Solving Style

The approach or method an individual or group uses to find solutions or overcome challenges.

Structured Approach

An organized and methodical way of addressing a problem or task that follows a specific format or set of guidelines.

Disputant Hostility

The presence of intense anger, aggression, or animosity between parties in a conflict.

Process Consultants

Professionals who assist organizations in analyzing and improving their processes, often focusing on the effectiveness and efficiency of operations.