Question

In: Statistics and Probability

Does therapy combined with exercise alleviate depressive symptoms more than therapy alone? People who were newly...

  1. 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 number of depressive symptoms. The data:

subject

therapy only

therapy plus exercise

1

35

30

2

28

35

3

21

12

4

15

26

5

34

27

6

32

18

7

28

32

8

25

24

9

26

15

10

30

31

Complete the appropriate test to answer the research question. To be done by hand.

Solutions

Expert Solution

The test we applied here is t test

orchestra answered 1 year ago
Next > < Previous

Related Solutions

Jenny wanted to know if people who exercise regularly eat more apples than people who don’t...
Jenny wanted to know if people who exercise regularly eat more apples than people who don’t exercise regularly. She took a simple random sample of six people who exercise. Their standard deviation was 2.00. She then took a new simple random sample of eight people who don’t exercise. Their standard deviation was 1.51. Please calculate the test statistic for this experiment; then state the critical value; then come to a conclusion concerning the null hypothesis; and then state what the...
Question 1: Some people are more susceptible to hypnosis than others. People who are highly suggestible...
Question 1: Some people are more susceptible to hypnosis than others. People who are highly suggestible have a vivid imagination and fantasy life. This has led researchers to hypothesize that the ability to recall dreams will also be affected by hypnotic susceptibility (HS). Dr. Flowers wanted to test this hypothesis. Using the Stanford Scale of Hypnotic Susceptibility, she assigned participants to low, medium, and high susceptibility groups. Dr. Flowers asked all participants to keep a dream diary. At the end...
In 2015, more than 130 people were killed in Paris by terrorists linked to the Islamic...
In 2015, more than 130 people were killed in Paris by terrorists linked to the Islamic State. Reaction was intense and world-wide. Yet, a day before, ISIS terrorists killed dozens of people in Beirut, Lebanon and much of the world paid little attention. Do you think ethnicity and nationalist figures in to the way people define a social problem? Note: The answer should be a paragraph form.
2.            The proportion of people who wait more than an hour at the Social Security Office is...
2.            The proportion of people who wait more than an hour at the Social Security Office is 28%. Use this information to answer the following questions: A.            If you randomly select 45 people what is the probability that at least 34% of them will wait more than an hour? B.            If you randomly select 60 people what is the probability that between 25% and 30% of them will wait more than an hour? C.            If you randomly select 150 people what is the probability...
2.            The proportion of people who wait more than an hour at the Social Security Office...
2.            The proportion of people who wait more than an hour at the Social Security Office is 28%. Use this information to answer the following questions: A.            If you randomly select 45 people what is the probability that at least 34% of them will wait more than an hour? B.            If you randomly select 60 people what is the probability that between 25% and 30% of them will wait more than an hour? C.            If you randomly select 150 people...
Why are more people declaring bankruptcy now than in the past? Does this have an effect...
Why are more people declaring bankruptcy now than in the past? Does this have an effect on those who do not declare bankruptcy? How does declaring bankruptcy affect your ability to obtain credit in the future?
You are interested in whether people who exercise while tired feel better about their bodies than...
You are interested in whether people who exercise while tired feel better about their bodies than people who exercise while not tired. You also measure the body image evaluations of non-exercises (separately for tired vs. not tired participants). You do not think that non-exercisers differ in the perceived positivity of their body image depending on whether they are tired or not. You also think that exercisers may have better body images than non-exercisers. You are able to make up your...
You are interested in whether people who exercise while tired feel better about their bodies than...
You are interested in whether people who exercise while tired feel better about their bodies than people who exercise while not tired. You also measure the body image evaluations of non-exercises (separately for tired vs. not tired participants). You do not think that non-exercisers differ in the perceived positivity of their body image depending on whether they are tired or not. You also think that exercisers may have better body images than non-exercisers. What kind of design would you use...
34. Standards for a certain panic disorder state that people who have more than μ =...
34. Standards for a certain panic disorder state that people who have more than μ = 2 panic attacks in a six month period qualify for a diagnosis of severe panic disorder. People with fewer than 2 panic attacks in this period would not meet the criteria for this particular diagnosis. Researchers hypothesize that work in high stress jobs may affect the incidence of panic attacks. They collect a sample of n = 61 employees from high stress jobs and...
What are some reasons why the uninsured are charged more for medical services than people who...
What are some reasons why the uninsured are charged more for medical services than people who are insured?
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT