Question
In: Statistics and Probability
We have a sample of 5090 participants, who self-reported severity of depressive symptoms in the past...
We have a sample of 5090 participants, who self-reported severity of depressive symptoms in the past 14 days. The scale used to assess depression ranges from 0 to 27, with scores greater than 9 indicating possible major depression. The sample mean is 3.33, with standard deviation equals to 4.66. A total of 477 participants have scores greater than 9. Do you think it is representative of the National Rates?
Men are 2493, and have a mean score of 2.92 (standard deviation=4.82); Women are 2597, and have a mean score of 3.72 (standard deviation=4.47). Are the mean scores statistically different?
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orchestra answered 2 years agoRelated Solutions
A group of researchers have shown potential for dont-b-sad to alleviate the severity of depressive behaviors...
A group of researchers have shown potential for dont-b-sad to
alleviate the severity of depressive behaviors in rodents; now it’s
time for clinical trials in humans. To do this, a sample of 300
individuals diagnosed with clinical depression in the state of
Illinois were randomly assigned to one of three treatment groups: •
100 individuals received a daily dose (60 mg pill) of dont-b-sad. •
100 individuals received a sugar pill with no active ingredients. •
100 individuals received no...
We have a sample of 9254 participants, 4557 men and 4697 women. The mean age of...
We have a sample of 9254 participants, 4557 men and 4697 women.
The mean age of the sample is 34.33 years; men mean age is 34.12
(Variance= 663.063). The Variance in the women's group is 637.5625.
Can you calculate women mean age? If so, is there a
statistically significant difference between men and women
mean age?
We have a sample of 9254 participants, 4557 men and 4697 women. The mean age of...
We have a sample of 9254 participants, 4557 men and 4697 women.
The mean age of the sample is 34.33 years; men mean age is 34.12
(Variance= 663.063). The Variance in the women's group is 637.5625.
Can you calculate women mean age? If so, is there a
statistically significant difference between men and women
mean age?
Does therapy combined with exercise alleviate depressive symptoms more than therapy alone? People who were newly...
Does therapy combined with exercise alleviate depressive
symptoms more than therapy alone? People who were newly diagnosed
with mild depression were invited into the study. Study
participants were carefully matched on age, race and gender. One
person from each pair was assigned to the therapy alone group, and
the other was assigned to the therapy plus exercise group. Twelve
weeks later, the depression levels of the two groups were compared
to see which of the two groups had a lower...
All the problems we have looked at in this chapter have assumed that all participants receive...
All the problems we have looked at in this chapter have assumed
that all participants receive an equal share of what is being
divided. Often, this does not occur in real life. For example,
Grandma might specify in her will that John is to receive 50%, Sue
is to receive 30%, and Margaret is to receive 20%.
To make things more reasonable, lets look at a simpler example.
Suppose Fred and Maria are going to divide a cake using the...
If we have 42 participants and find a correlation coefficient of .276, which of the following...
If we have 42 participants and find a correlation coefficient of
.276, which of the following is the correct interpretation?
A.) The r obtained value exceeds the critical value at the p
< .05 level but not the p < .01 level
B.) The r obtained value exceeds the critical value at the p
< .05 level and the p < .01 level
C.) The r obtained value does not exceed either the critical
value at the p < .05...
We use a paired-samples t test when we have two samples, and the same participants are...
We use a paired-samples t test when we have two samples, and the
same participants are in both samples; to conduct the test, we
calculate a difference score for every individual in the study.
Discuss what areas in psychology would benefit from using a
paired-sample t test to better understand that phenomena. For
example, when measuring intelligence, we could develop an
intervention to help improve intelligence, and the compare before
and after scores for each participant. I asked this question...
Terrell, a self-employed architect who reported a net profit on his Schedule C, paid for his...
Terrell, a self-employed architect who reported a net
profit on his Schedule C, paid for his health insurance out of his
own pocket. He was not eligible to be covered under any other
insurance plan until November 1, when he became eligible for, but
opted out of, his spouse's employer-sponsored plan. His total
premiums paid for the year were $4,600. How much can Terrell deduct
as an adjustment to income on his tax return?
$767
$2,300
$3,833
$4,600
Homework is to right an essay about *Symptoms and Signs of Seizures what we have to...
Homework is to right an essay about *Symptoms and Signs of
Seizures what we have to know about seizures* Minimum one page as a
word document
Homework is to right an essay about *Symptoms and Signs of Seizures what we have to...
Homework is to right an essay about *Symptoms and Signs of
Seizures what we have to know about seizures* Minimum 520 words
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