Question
In: Statistics and Probability
A recent study investigated whether the number of positive health behaviors (e.g., exercising, eating healthy) is...
A recent study investigated whether the number of positive health behaviors (e.g., exercising, eating healthy) is predictive of a person's score on a happiness index, such that as positive health behaviors go up, happiness goes up. The results from the study, which was conducted with 12 people, were as follows: r = 0.63 and SSY = 56.0.
What is the MSregression? What is the MSresidual? What is the calculated test statistic?
Do you reject the null?
Given your conclusion about the null, in a sentence describes what the results of the study were.
Solutions
Expert Solution
Null Hypothesis, Ho: There is no relationship between positive health behavior and happiness scores of a person.
Alternative Hypothesis,Ha: There is significant relationship between positive health behavior and happiness scores of a person.
Conclusion: We have sufficient evidence at 5% level of significance to conclude that the number of positive health behaviors (e.g., exercising, eating healthy) is predictive of a person's score on a happiness index, such that as positive health behaviors go up, happiness goes up.
orchestra answered 1 year agoRelated Solutions
Need Chi-Square Test for Independence to determine if eating healthy and exercising reduces diastolic blood pressure....
Need Chi-Square Test for Independence to determine if eating
healthy and exercising reduces diastolic blood pressure.
Day
BP Diastolic
Ate Healthy and Exercised
1
85
N
2
109
N
3
96
N
4
92
N
5
99
N
6
98
N
7
102
Y
8
93
N
9
90
Y
10
84
N
11
90
N
12
86
N
13
81
N
14
77
Y
15
90
Y
16
86
Y
17
83
N
18
80
Y
19
78
N...
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A health psychologist tests a new intervention to determine if it can change healthy behaviors among...
A health psychologist tests a new intervention to determine if
it can change healthy behaviors among siblings. To conduct the this
test using a matched-pairs design, the researcher gives one sibling
an intervention, and the other sibling is given a control task
without the intervention. The number of healthy behaviors observed
in the siblings during a 5-minute observation were then
recorded.
Intervention
Yes
No
5
4
3
5
6
4
6
5
6
4
4
4
(a) Test whether or...
A health psychologist tests a new intervention to determine if it can change healthy behaviors among...
A health psychologist tests a new intervention to determine if
it can change healthy behaviors among siblings. To conduct the this
test using a matched-pairs design, the researcher gives one sibling
an intervention, and the other sibling is given a control task
without the intervention. The number of healthy behaviors observed
in the siblings during a 5-minute observation were then recorded.
Intervention Yes 6, 2, 5,6,6,5 No 4,5,4,5,4,4
(a) Test whether or not the number of healthy behaviors differ
at...
A health psychologist tests a new intervention to determine if it can change healthy behaviors among...
A health psychologist tests a new intervention to determine if
it can change healthy behaviors among siblings. To conduct the this
test using a matched-pairs design, the researcher gives one sibling
an intervention, and the other sibling is given a control task
without the intervention. The number of healthy behaviors observed
in the siblings during a 5-minute observation were then
recorded.
Yes:6,4,7,7,7,5
No:5,6,5,6,5,5
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Describe what a Type II error would mean in this
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Group
n
Mean
Standard Deviation
Males
9
38
15
Females
11
12
10
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