Question

In: Statistics and Probability

A new form of cognitive therapy has been developed to treat the symptoms of depression. To...

A new form of cognitive therapy has been developed to treat the symptoms of depression. To determine the effectiveness of the treatment, one group of individuals was exposed to the experimental treatment (Treatment Group) and a second unique group was not exposed to the new treatment (Control Group). The values below represent the Beck Depression Inventory (BDI) scores for the groups. The BDI is a widely used tool for screening depression, and higher scores indicate higher reported levels of depression.

Treatment Group

14 14 14 15 15 17 17 18 18 19

20 20 20 21 22 23 23 23 24 26

26 26 26 27 27 28 28 29 30 30

Control Group

15 15 17 19 19 20 21 22 22 23

24 24 24 24 24 25 25 25 26 26

27 27 27 29 29 29 30 31 31 32

34 34

1. What is the mean BDI score for the treatment group?

2.What is the mean BDI score for the control group?

3.What is the sum of squared deviations for the Treatment Group?

4.What is the sum of squared deviations for the Control Group?

5.Conduct a hypothesis test to determine whether the sample data provide evidence for a difference in the respective populations. Use a two-tailed test and an alpha level of .05. Be sure to include all steps in the hypothesis testing process. Report your findings in the following format:


Step 1
Ho:
Step 2
Identify critical value
Step 3
Report pooled variance
Report error term
Report test statistic (t score)
Step 4
Make a decision
Please show your work step by step so I can understand please and thank you! I will rate!

A new form of cognitive therapy has been developed to treat the symptoms of depression. To determine the effectiveness of the treatment, one group of individuals was exposed to the experimental treatment (Treatment Group) and a second unique group was not exposed to the new treatment (Control Group). The values below represent the Beck Depression Inventory (BDI) scores for the groups. The BDI is a widely used tool for screening depression, and higher scores indicate higher reported levels of depression.

Treatment Group

14 14 14 15 15 17 17 18 18 19

20 20 20 21 22 23 23 23 24 26

26 26 26 27 27 28 28 29 30 30

Control Group

15 15 17 19 19 20 21 22 22 23

24 24 24 24 24 25 25 25 26 26

27 27 27 29 29 29 30 31 31 32

34 34

1. What is the mean BDI score for the treatment group?

2.What is the mean BDI score for the control group?

3.What is the sum of squared deviations for the Treatment Group?

4.What is the sum of squared deviations for the Control Group?

5.Conduct a hypothesis test to determine whether the sample data provide evidence for a difference in the respective populations. Use a two-tailed test and an alpha level of .05. Be sure to include all steps in the hypothesis testing process. Report your findings in the following format:


Step 1
Ho:
Step 2
Identify critical value
Step 3
Report pooled variance
Report error term
Report test statistic (t score)
Step 4
Make a decision
Please show your work step by step so I can understand please and thank you! I will rate!

Solutions

Expert Solution

orchestra answered 2 years ago
Next > < Previous

Related Solutions

A new form of cognitive therapy has been developed to treat the symptoms of depression. To...
A new form of cognitive therapy has been developed to treat the symptoms of depression. To determine the effectiveness of the treatment, one group of individuals was exposed to the experimental treatment (Treatment Group) and a second unique group was not exposed to the new treatment (Control Group). The values below represent the Beck Depression Inventory (BDI) scores for the groups. The BDI is a widely used tool for screening depression, and higher scores indicate higher reported levels of depression....
You are a cognitive psychologist who has developed a new treatment for depression. Currently, the most...
You are a cognitive psychologist who has developed a new treatment for depression. Currently, the most effective treatments for depression are behavioral treatments and pharmacological treatments (treatments involving medication). In order to validate your new treatment, you need to show that it is at least as effective as behavioral treatment and medication. You conduct a clinical trial to determine the effectiveness of your treatment by randomly assigning 60 individuals with depression to four treatment groups: a Control group (n =...
A new drug has been developed to treat a condition, and it is alleged to be...
A new drug has been developed to treat a condition, and it is alleged to be more effective than traditional treatment. An experiment will be conducted to test whether the claim is true. To perform the hypothesis test, a 99% confidence level is selected for the hypothesis test. The new drug will be administered to a sample of 200 individuals with the condition, selected at random. Another 300 individuals are randomly selected to receive the traditional treatment. Of the 200...
A new drug has been developed to treat a particular condition, and it is alleged to...
A new drug has been developed to treat a particular condition, and it is alleged to be more effective than traditional treatment. An experiment will be conducted to test whether the claim is true. To perform the hypothesis test, a 95% confidence level is selected for the hypothesis test. The new drug will be administered to a sample of 200 individuals with the condition, selected at random. Another 300 individuals are randomly selected to receive the traditional treatment. Of the...
A new drug has been developed to treat a particular condition, and it is alleged to...
A new drug has been developed to treat a particular condition, and it is alleged to be more effective than traditional treatment. An experiment will be conducted to test whether the claim is true. To perform the hypothesis test, a 99% confidence level is selected for the hypothesis test. The new drug will be administered to a sample of 200 individuals with the condition, selected at random. Another 300 individuals are randomly selected to receive the traditional treatment. Of the...
A new drug has been developed to treat a particular condition, and it is alleged to...
A new drug has been developed to treat a particular condition, and it is alleged to be more effective than traditional treatment. An experiment will be conducted to test whether the claim is true. To perform the hypothesis test, a 99% confidence level is selected for the hypothesis test. The new drug will be administered to a sample of 200 individuals with the condition, selected at random. Another 300 individuals are randomly selected to receive the traditional treatment. Of the...
A new drug has been developed to treat a particular condition, and it is alleged to...
A new drug has been developed to treat a particular condition, and it is alleged to be more effective than traditional treatment. An experiment will be conducted to test whether the claim is true. To perform the hypothesis test, a 95% confidence level is selected for the hypothesis test. The new drug will be administered to a sample of 200 individuals with the condition, selected at random. Another 300 individuals are randomly selected to receive the traditional treatment. Of the...
A new drug has been developed to treat a particular condition, and it is alleged to...
A new drug has been developed to treat a particular condition, and it is alleged to be more effective than traditional treatment. An experiment will be conducted to test whether the claim is true. To perform the hypothesis test, a 99% confidence level is selected for the hypothesis test. The new drug will be administered to a sample of 200 individuals with the condition, selected at random. Another 300 individuals are randomly selected to receive the traditional treatment. Of the...
A new drug has been developed to treat a particular condition, and it is alleged to...
A new drug has been developed to treat a particular condition, and it is alleged to be more effective than traditional treatment. An experiment will be conducted to test whether the statement is true. To perform a hypothesis test, a confidence level of 99% is selected for the hypothesis test. The new drug was administered to a sample of 200 individuals with the condition, selected at random, another 300 individuals were selected to whom the traditional treatment was administered. Of...
A new drug has been developed to treat a particular condition, and it is alleged to...
A new drug has been developed to treat a particular condition, and it is alleged to be more effective than traditional treatment. An experiment will be conducted to test whether the statement is true. To perform the hypothesis test, a confidence level of 99% is selected for the hypothesis test. The new drug will be administered to a sample of 200 individuals with the condition, selected at random. An additional 300 individuals will be randomly selected and will be administer...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT