# Category Archives: Statistics

## What are the multiple correlations of three sets of predictors and overall state of health?

What are the multiple correlations of three sets of predictors and overall state of health? The first set of predictors contains demographic variables (age and years of education). The second set contains IPA total score and current quality of life. The third set contains smoking history and satisfaction with current weight.

1. Open your individual dataset (Book 5).

2. We recoded the “smoke” variable in the Computer Exercise RM-ANOVA. Use that recoded variable in this analysis.

3. Run Regression. Read the document,How to Run Regression and Diagnostics.

4. Check the assumptions of homoscedasticity, absence of multicollinearity, and linearity and normality using standardized regression residuals.

5. Interpret SPSS outputs and write up your findings. Your report includes:

## What conclusions might you draw from these data?

According to the Death Penalty Information Center, death penalty states record higher murder rates than non-deathpenalty states. On January 1, 2014, the average murder rate among death penalty states was 4.7 per 100,000 population; for non-death-penalty states, the rate was 3.9. The South executes the largest percentage of offenders who are convicted of a capital crime (81 percent) and records the highest murder rate (5.5 murders per 100,000 people); the Northeast executes the fewest (0.2 percent) and records the lowest murder rate, 3.3. What conclusions might you draw from these data? How might we prevent geographical unfairness?

## How would you defend these reforms to persons who advocate for tough-on-crime approaches?

The 10-member Colson Task Force on Federal Corrections is composed of Republican and Democrat federal and state congressional leaders, a federal judge, a U.S. attorney, a state warden, a professor, and representatives from local agencies. The members crossed political lines to issue a consensus-based report calling for the federal Bureau of Prisons to reduce its population by 60,000 inmates and reserve mandatory minimums for violent offenders only, and it urged Congress to create a path for prisoners who have served more than 15 years to apply for shorter sentences by asking their judges to give their cases a second look. How would you defend these reforms to persons who advocate for tough-on-crime approaches?

## How would you encourage “buy-in” from your jail staff to follow research-based guidelines and change your facility’s culture or norms that are based almost exclusively on gender neutral operational practices?

The National Resource Center for Justice Involved Women and the American Jail Association developed a series of eight jail tip sheets to facilitate the implementation of genderinformed approaches with women in jail. Each tip sheet includes a brief overview of the topic, selected evidence-based research findings, and brief action steps that jail leadership and staff can take to enhance gender responsive practices. Locate the tip sheets at cjinvolvedwomen.org/jail-tip-sheets. After reviewing the tip sheets, assume you are a jail administrator. How would you encourage “buy-in” from your jail staff to follow research-based guidelines and change your facility’s culture or norms that are based almost exclusively on gender neutral operational practices?

## what can be done with little or no budget increase to encourage more inmates to participate in prison education

As the newly appointed director of prison education programming, you remember two things from your undergraduate corrections course: first, few inmates participate in prison education programs; second, while literacy alone will not prevent crime, it is one of the many skills needed to function well as a responsible and law-abiding adult in our society. Your warden would like to create a model prison education program and asks you (1) what can be done with little or no budget increase to encourage more inmates to participate in prison education and (2) how will you know whether your strategies have been effective? What will you tell the warden?

## Reply and follow at least two of your classmates’ posts where you will provide enough and substantive feedback about their post.

Math 2 Discussion Six Post due by Wednesday and replies by Friday! This discussion will be graded using the attached rubric.  (Note: You must submit your first post before seeing other posts.) You will click the reply option and discuss the following:             (17 points) 1.  Professor Ramos advertises his diet program performed on 70 obese teenagers. Ramos weighed each of the 70 individuals before beginning the diet and then 6 weeks after starting the diet (just for the record and so you know, this is a two dependent sample experiment since the same population of 70 individuals is weighed before and after). He recorded the difference in weighs before and after. A positive value indicates a person lost weight on the diet while….

## If a student receives a 92 on test 1, an 85 on test 2, a 95 on test 3, a 92 on the homework, a 55 on the project, and an 83 on the final, what grade did the student earn in the class?

STAT200 MIDTERM EXAM Name:______________________ Your work should be neat and organized. Incomplete answers or work that is difficult to follow will result in point deductions. You may include additional attachments with your work for the problems. The answers should be clearly labeled and matched with the problem number. 1. The U.S. Census Bureau needs to estimate the median income of males in the U.S., they collect incomes from 2500 males. State the individual, variable, population, sample, parameter, and statistic.   2. What does the standard deviation measure?   3. How many ways are there to select a president, vice president, and secretary from a class of 35 people?   4. How many different license plates are there that start with two letters followed by four digits? Assume there….

## What may be inference from such a situation?

*There are several assumptions for the use of an independent samples t test. State each of these and the implications should these assumptions be violated. Is it possible for a p value to equal 0? Why or why not? *There are several indices on effect sizes for independent samples t tests. Describe three of these and when one might be used over the others. Next, given a situation in which a research reports a large eta squared effect size (eta squared = .64), why might their reported t value be small and not statistically significant? What may be inference from such a situation? Indicate and provide examples of three of the factors that influence the size of t. *  For each essay assignment, answer both essay questions using….

## Assemble the application in the following order to create a single document.

STA2023 Application 1 (2016-17) 1   STA2023 Application 1: Sample Data and Descriptive Statistics The completed application should be submitted to the Assignments link in Falcon Online. Purpose: The purpose of this assignment is to organize a random sample of data values and create statistics, tables, and a graph based on the data. The information will then be analyzed in a written summary. Part 1: Introduction Write an introduction to this application. Discuss the random variable and the source of the sample data. Refer to the textbook or class notes to describe the basic components of the application and the statistical concepts that are applied. The introduction should be at least 50 words and be written with proper grammar and spelling. (See Formatting paragraph at the end) Part….

## Discuss characteristics of the sample data such as outliers and skewness, providing  support and examples

Write an introduction to this application. Discuss the random variable and the source of the sample data. Refer to the textbook or class notes to describe the basic components of the application and the statistical concepts that are applied. The introduction should be at least 50 words and be written with proper grammar and spelling. Write a summary of the application, considering the following topics. The summary should be at least 150 words and be written with proper grammar and spelling. Refer to the tables and graph (by label and number) throughout the summary. Connect the statistical information to the population that is being studied. Use the proper statistical terms and symbols in the summary. Write about the concepts in the application rather than the steps followed. ….