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11 pages
Difference between Descriptive Statistics and Inferential Statistics
Descriptive statistics includes statistical procedures that we use to describe the population we are studying. The data co ...
Difference between Descriptive Statistics and Inferential Statistics
Descriptive statistics includes statistical procedures that we use to describe the population we are studying. The data could be collected from either a sample or a population, but the results help us organize and describe data.
Statistics Treating Depression Recurrence Relative to The Placebo Lab Part 1 Discussion
Learn by Doing
In this activity, you will investigate the first question related to the study described below.
Some ...
Statistics Treating Depression Recurrence Relative to The Placebo Lab Part 1 Discussion
Learn by Doing
In this activity, you will investigate the first question related to the study described below.
Some features of this activity may not work well on a cell phone or tablet. We highly recommend that you complete this activity on a computer.
Here are the directions and grading rubric for the Learn by Doing discussion board exercises.
A list of StatCrunch directions is provided at the bottom of this page.
Context
Clinical depression is a recurrent illness requiring treatment and often hospitalization. Nearly 50% of people who have an episode of major depression will have a recurrence within 2-3 years. Being able to prevent the recurrence of depression in people who are at risk for the disease would go a long way to alleviate the pain and suffering of patients.
During the 1980's the federal government, through the National Institutes of Health (NIH), sponsored a large clinical trial to evaluate two drugs for depression. There were 3 treatment groups. Patients received either Imipramine (Imip), Lithium (Li), or a Placebo (Pl). Researchers randomly assigned patients to one of the 3 treatment groups and followed them for 2-4 years to track any recurrences of depression.
(Prien et al., Archives of General Psychiatry, 1984).
Variables
Hospt: Which hospital the patient was from: Labeled 1, 2, 3, 5 or 6
Treat: 0=Lithium; 1=Imipramine; 2=Placebo
Outcome: 0=Success 1=Failure (recurrence of depression)
Time: Number of weeks until a recurrence (if outcome=1) or until study ended (if outcome=0)
AcuteT: How long the patient was depressed before the start of the current study, measured in days
Age: Age in years
Gender: 1=Female 2=Male
Data
If you have not done so already, download the depression datafile (as always, if a login box opens, just close it and then download the file). Then upload the file in StatCrunch.
Prompt
We will analyze the data to answer the 1st research question: Which of the drugs (if either) was more successful in preventing the recurrence of depression relative to the placebo?
In the previous lab-preparation activity, we determined that we will analyze the data using a two-way table and conditional percentages.
Use StatCrunch to produce a two-way contingency table. (directions)
Copy the table in your StatCrunch output window and paste it in your initial discussion post. (directions)
After you paste the content of the your StatCrunch output window into your discussion post, keep the table titled Contingency table results: and delete the Chi-Square results: table.
Analyze the data in your two-way table by finding appropriate conditional percentages. Write each conditional percentage as a ratio (e.g. 25 out of 40) and as a percentage (e.g. 25/40 = 62.5%). Then write a sentence that explains the meaning of the percentage in the context of the research question.
Draw a conclusion. Based on this study, which drug was the most effective in preventing the recurrence of depression? Support your conclusion using conditional percentages.
Algebra 2 Project 2
Hello,I need this project completed correctly and fully. Please read the directions carefully. A graphing calculator may b ...
Algebra 2 Project 2
Hello,I need this project completed correctly and fully. Please read the directions carefully. A graphing calculator may be needed. I do not believe a textbook is needed, but if it is please let me know.The directions for each part seem complicated, but I feel this actually will not be that difficult.Thank you!B
Network Modeling
Using specified data files, chapter example files, and templates from the “Topic 6 Student Data, Template, and Example F ...
Network Modeling
Using specified data files, chapter example files, and templates from the “Topic 6 Student Data, Template, and Example Files” topic material, complete Chapter 14, Problems 15, 16, 17, 20, and 88. Use Microsoft Excel’s Solver Add-In to complete these problems. For problems 17, 20, and 88, run the Solver’s Answer and Sensitivity Reports. Interpret and summarize the key results.To receive full credit on the assignment, complete the following.Ensure that all Solver settings are defined through the use of the Solver dialog box.Ensure that Excel files include the associated cell functions and/or formulas if functions and/or formulas are used.Include a written response to all narrative questions presented in the problem by placing it in the associated Excel file.Include Answer and Sensitivity Reports interpretation and summary of key results.Place each problem in its own Excel file. Ensure that your first and last name are in your Excel file names.
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In this assignment, you will be asked to find specific information related to the area and perimeter of aInstructions: Ima ...
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In this assignment, you will be asked to find specific information related to the area and perimeter of aInstructions: Imagine that you are landscaper who is designing a backyard for your clients. The
MTH 154 Quantative Reasoning Regular Payments Savings Plan
Using the template you have downloaded and the prototype figure below, construct a savings plan spreadsheet using three di ...
MTH 154 Quantative Reasoning Regular Payments Savings Plan
Using the template you have downloaded and the prototype figure below, construct a savings plan spreadsheet using three different methods (iteration (steps), formula, and Excel function) that will arrive at the very same balance if properly done. Be sure to type in the Givens box the same principal, compound, and APR as the prototype figure. From Month #18 (row 26) and thereafter, you will be building formulas that are flexible enough to accommodate other values you type into the Givens box later.
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Most Popular Content
11 pages
Difference between Descriptive Statistics and Inferential Statistics
Descriptive statistics includes statistical procedures that we use to describe the population we are studying. The data co ...
Difference between Descriptive Statistics and Inferential Statistics
Descriptive statistics includes statistical procedures that we use to describe the population we are studying. The data could be collected from either a sample or a population, but the results help us organize and describe data.
Statistics Treating Depression Recurrence Relative to The Placebo Lab Part 1 Discussion
Learn by Doing
In this activity, you will investigate the first question related to the study described below.
Some ...
Statistics Treating Depression Recurrence Relative to The Placebo Lab Part 1 Discussion
Learn by Doing
In this activity, you will investigate the first question related to the study described below.
Some features of this activity may not work well on a cell phone or tablet. We highly recommend that you complete this activity on a computer.
Here are the directions and grading rubric for the Learn by Doing discussion board exercises.
A list of StatCrunch directions is provided at the bottom of this page.
Context
Clinical depression is a recurrent illness requiring treatment and often hospitalization. Nearly 50% of people who have an episode of major depression will have a recurrence within 2-3 years. Being able to prevent the recurrence of depression in people who are at risk for the disease would go a long way to alleviate the pain and suffering of patients.
During the 1980's the federal government, through the National Institutes of Health (NIH), sponsored a large clinical trial to evaluate two drugs for depression. There were 3 treatment groups. Patients received either Imipramine (Imip), Lithium (Li), or a Placebo (Pl). Researchers randomly assigned patients to one of the 3 treatment groups and followed them for 2-4 years to track any recurrences of depression.
(Prien et al., Archives of General Psychiatry, 1984).
Variables
Hospt: Which hospital the patient was from: Labeled 1, 2, 3, 5 or 6
Treat: 0=Lithium; 1=Imipramine; 2=Placebo
Outcome: 0=Success 1=Failure (recurrence of depression)
Time: Number of weeks until a recurrence (if outcome=1) or until study ended (if outcome=0)
AcuteT: How long the patient was depressed before the start of the current study, measured in days
Age: Age in years
Gender: 1=Female 2=Male
Data
If you have not done so already, download the depression datafile (as always, if a login box opens, just close it and then download the file). Then upload the file in StatCrunch.
Prompt
We will analyze the data to answer the 1st research question: Which of the drugs (if either) was more successful in preventing the recurrence of depression relative to the placebo?
In the previous lab-preparation activity, we determined that we will analyze the data using a two-way table and conditional percentages.
Use StatCrunch to produce a two-way contingency table. (directions)
Copy the table in your StatCrunch output window and paste it in your initial discussion post. (directions)
After you paste the content of the your StatCrunch output window into your discussion post, keep the table titled Contingency table results: and delete the Chi-Square results: table.
Analyze the data in your two-way table by finding appropriate conditional percentages. Write each conditional percentage as a ratio (e.g. 25 out of 40) and as a percentage (e.g. 25/40 = 62.5%). Then write a sentence that explains the meaning of the percentage in the context of the research question.
Draw a conclusion. Based on this study, which drug was the most effective in preventing the recurrence of depression? Support your conclusion using conditional percentages.
Algebra 2 Project 2
Hello,I need this project completed correctly and fully. Please read the directions carefully. A graphing calculator may b ...
Algebra 2 Project 2
Hello,I need this project completed correctly and fully. Please read the directions carefully. A graphing calculator may be needed. I do not believe a textbook is needed, but if it is please let me know.The directions for each part seem complicated, but I feel this actually will not be that difficult.Thank you!B
Network Modeling
Using specified data files, chapter example files, and templates from the “Topic 6 Student Data, Template, and Example F ...
Network Modeling
Using specified data files, chapter example files, and templates from the “Topic 6 Student Data, Template, and Example Files” topic material, complete Chapter 14, Problems 15, 16, 17, 20, and 88. Use Microsoft Excel’s Solver Add-In to complete these problems. For problems 17, 20, and 88, run the Solver’s Answer and Sensitivity Reports. Interpret and summarize the key results.To receive full credit on the assignment, complete the following.Ensure that all Solver settings are defined through the use of the Solver dialog box.Ensure that Excel files include the associated cell functions and/or formulas if functions and/or formulas are used.Include a written response to all narrative questions presented in the problem by placing it in the associated Excel file.Include Answer and Sensitivity Reports interpretation and summary of key results.Place each problem in its own Excel file. Ensure that your first and last name are in your Excel file names.
4 pages
Backyard Shapes
In this assignment, you will be asked to find specific information related to the area and perimeter of aInstructions: Ima ...
Backyard Shapes
In this assignment, you will be asked to find specific information related to the area and perimeter of aInstructions: Imagine that you are landscaper who is designing a backyard for your clients. The
MTH 154 Quantative Reasoning Regular Payments Savings Plan
Using the template you have downloaded and the prototype figure below, construct a savings plan spreadsheet using three di ...
MTH 154 Quantative Reasoning Regular Payments Savings Plan
Using the template you have downloaded and the prototype figure below, construct a savings plan spreadsheet using three different methods (iteration (steps), formula, and Excel function) that will arrive at the very same balance if properly done. Be sure to type in the Givens box the same principal, compound, and APR as the prototype figure. From Month #18 (row 26) and thereafter, you will be building formulas that are flexible enough to accommodate other values you type into the Givens box later.
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