Random Samples Were Selected from Three Populations A Compute the Overall Mean

question 136

Essay

Random samples were selected from three populations. The data obtained are shown below. Please note that the sample sizes are not equal.
$\begin{array}{lll}\text { Treatment } 1&\text { Treatment } 2&\text { Treatment } 3\\37 & 43 & 28 \\33 & 39 & 32 \\36 & 35 & 33 \\38 & 38 & \\& 40 &\end{array}$
a. Compute the overall mean .
b. At 95% confidence using the critical value and p-value approach, test to see if there is a significant difference among the means.

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Definitions:

Recovery Strategies

Techniques or actions employed to overcome or manage the aftermath of stressful, traumatic, or challenging situations.

Future Crises

Prospective critical events or turning points that pose significant risks or dangers.

Classroom-Based Interventions

Educational strategies or programs implemented within a classroom setting aimed at improving student behaviors, learning, and overall development.

Symptoms/Reactions

Signs or indications of a physical or psychological condition, or the observable response of a person to a particular situation.