A researcher conducts and independent- measures study examining the effectiveness of a group exercise program at an assisted living 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 research 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 1. Does the exercise program have a significant effect? Use an alpha level of .05, two tails. Show all calculations. a. State the research hypotheses b. Identify the critical value c. Calculate the test statistic d. Evaluate the null hypothesis 2. Compute Cohens d to measure the effect size of the treatment.

A researcher conducts and independent- measures study examining the effectiveness of a group exercise program at an assisted living 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 research 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 1. Does the exercise program have a significant effect? Use an alpha level of .05, two tails. Show all calculations. a. State the research hypotheses b. Identify the critical value c. Calculate the test statistic d. Evaluate the null hypothesis 2. Compute Cohens d to measure the effect size of the treatment.

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

A researcher conducts and independent-
measures study examining the effectiveness of
a group exercise program at an assisted living
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 research 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
%3D
1. Does the exercise program have a
significant effect? Use an alpha level of .05,
two tails. Show all calculations.
a. State the research hypotheses
b. Identify the critical value
c. Calculate the test statistic
d. Evaluate the null hypothesis
2. Compute Cohens d to measure the effect
size of the treatment.

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