Entries by Hannah Wangui

Question Question A group of social scientists wanted to determine if police officers have a higher IQ than the general public. They created the following hypotheses: Ha: Police Officers are significantly more intelligent than the general public. Ho: Police officers are not significantly more intelligent than the general public.

August 22, 2019 in /by

Question A group of social scientists wanted to determine if police officers have a higher IQ than the general public. They created the following hypotheses:  Ha: Police Officers are significantly more intelligent than the general public. Ho: Police officers are not significantly more intelligent than the general public.  To test their hypotheses, they took a […]

 

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QuestionQuestion To test their hypotheses, they took a sample of 140 police officers and administered an IQ test. The mean score for officers was 112 with a standard deviation of 10. A second sample of 150 citizens from the general population yielded a average IQ score of 105 with a standard deviation of 15. What is the calculated value of t for this problem?. The mean score for officers was 112 with a standard deviation of 10. A second sample of 150 citizens from the general population yielded a average IQ score of 105 with a standard deviation of 15. What is the calculated value of t for this problem?

August 22, 2019 in /by

Question To test their hypotheses, they took a sample of 140 police officers and administered an IQ test. The mean score for officers was 112 with a standard deviation of 10. A second sample of 150 citizens from the general population yielded a average IQ score of 105 with a standard deviation of 15. What is […]

 

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QuestionQuestion As part of an evaluation team, you have recently collected data on a drug treatment program. The drug treatment program. You found the following results: Successfully Completed Heroin 105 Cocaine 278 Meth 173 Returned to Incarceration: Heroin 216 Cocaine 596 Meth 350 You also know that the statewide Return-to-Incarceration rate for drug programs is 64%, meaning that 64% of drug offenders are returned to incarceration. Your task is to use this data to answer the following questions: Does your program overall return more or less offenders to incarceration than the statewide average? (speaking in terms of statistical significance) For each drug of choice (heroin, cocaine, and meth), are more or less offenders to incarceration than the statewide average? (speaking in terms of statistical significance) Are there statistically significant differences between the return-to-incarceration rates for offenders with different drugs of choice? For each of the above questions you need to: Select an appropriate statistical technique for each question and justify that selection (in terms of the type of variable and the question being asked); walk through the steps of statistical analysis (and show your work) from beginning to end; and provide an answer for each that comes from that statistical analysis, but that is explained in real-world terms (meaning, what does the statistical analysis actually mean). Write up your answers in a report format that would be suitable for submission to a congressional committee- meaning, appropriately structured and proofread and without any extra fluff or tangent.. The drug treatment program. You found the following results: Successfully Completed Heroin 105 Cocaine 278 Meth 173 Returned to Incarceration: Heroin 216 Cocaine 596 Meth 350 You also know that the statewide Return-to-Incarceration rate for drug programs is 64%, meaning that 64% of drug offenders are returned to incarceration. Your task is to use this data to answer the following questions: Does your program overall return more or less offenders to incarceration than the statewide average? (speaking in terms of statistical significance) For each drug of choice (heroin, cocaine, and meth), are more or less offenders to incarceration than the statewide average? (speaking in terms of statistical significance) Are there statistically significant differences between the return-to-incarceration rates for offenders with different drugs of choice? For each of the above questions you need to: Select an appropriate statistical technique for each question and justify that selection (in terms of the type of variable and the question being asked); walk through the steps of statistical analysis (and show your work) from beginning to end; and provide an answer for each that comes from that statistical analysis, but that is explained in real-world terms (meaning, what does the statistical analysis actually mean). Write up your answers in a report format that would be suitable for submission to a congressional committee- meaning, appropriately structured and proofread and without any extra fluff or tangent.

August 22, 2019 in /by

Question As part of an evaluation team, you have recently collected data on a drug treatment program. The drug treatment program. You found the following results: Successfully Completed Heroin 105 Cocaine 278 Meth 173 Returned to Incarceration: Heroin 216 Cocaine 596 Meth 350 You also know that the statewide Return-to-Incarceration rate for drug programs is […]

 

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