A researcher conducts an independent-measures study examining the effectiveness of a group exercise program at an assisted livin
g facility for elderly adults. One group of residents is selected to participate in the program, and a second group serves as a control. After 6 weeks, the researcher records a combined score measuring balance and strength for each individual. The data are as follows:
Control Exercise n = 10 n = 15 M = 12 M = 15.5 SS = 120.5 SS = 190.0
a. Does the exercise program have a significant effect? Use an alpha level of .05, two tails.
b. Compute Cohen�s d to measure the size of the treatment effect.
Control Exercise n = 10 n = 15 M = 12 M = 15.5 SS = 120.5 SS = 190.0
a. Does the exercise program have a significant effect? Use an alpha level of .05, two tails.
b. Compute Cohen�s d to measure the size of the treatment effect.
1 answer:
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Answer:
<h2>Step-by-step explanation:
5-2(2x - 3) = 12
<u>Expanda los términos en el corchete</u>
Eso es
5 - 4x + 6 = 12
<u>Agrupar términos similares</u>
Envíe las constantes al lado derecho de la ecuación y aquellas con variables al lado izquierdo
Tenemos
- 4x = 12 - 5 - 6
- 4x = 1
Divide ambos lados entre - 4
<h3>Tenemos la respuesta final como
<h3>Espero que esto te ayude