Data Management - Statisitcal Analysis Describe each graph seperately. Explain the type of graph with description of variables as well as any visual trend/relation in data.
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Data Management - Statisitcal Analysis
Describe each graph seperately. Explain the type of graph with description of variables as well as any visual trend/relation in data.
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- 1. DETAILS PECKSTAT2COREQ 9.R.084.S. MY NOTES In a survey on supernatural experiences, 728 of 4,003 adult Americans surveyed reported that they had seen a ghost. Assume that this sample is representative of the population of adult Americans. (a) Use the given information to estimate the proportion of adult Americans who would say they have seen a ghost. (Round your answer to three decimal places.) (b) Verify that the conditions for use of the margin of error formula to be appropriate are met. Select---v. The condition that the The condition that the sample is a random sample from the population of interest or the sample is selected in a way that should result in a representative sample is sample size is large is ---Select--- v. (c) Calculate the margin of error. (Round your answer to three decimal places.) (d) Interpret the margin of error in context. O It is unlikely that the estimated proportion of all adult Americans who would say they have seen a ghost differs from the true…What is the predicted suicide rate per 100000 people ?There's a new treatment for addiction and because resources are limited, a program decides it can offer it only to those people whose ASI scores are in the top 10% of scores. What raw score on the ASI would a person have to have to be eligible for the program?
- Suppose the incidence rate of myocardial infarction (MI)was 5 per 1000 among 45- to 54-year-old men in 2000.To look at changes in incidence over time, 5000 men in thisage group were followed for 1 year starting in 2010. Fifteennew cases of MI were found. Suppose that 25% of patients with MI in 2000 died within24 hours. This proportion is called the 24-hour case-fatalityrate. >How large a sample is needed in Problem 7.15 toachieve 90% power?a pathological video game user(PVGU) is à video game user averages 31 or more hours a week of of gameplay.According to the National Institute of Mental Health website, the prevalence (base rate) of schizophrenia is less than 1% of the population. For purposes of this question, let's assume that it is 1%. Suppose we have a diagnostic test for schizophrenia that is 90% correct for those who have the disorder and also 90% correct for those who do not have it. АCTUAL Schizophrenic Normal Schizophrenic TEST RESULT Normal 891 10 990 1,000 Now suppose the test says that your oddly behaving neighbor has schizophrenia. What is the likelihood that he actually does have it? The likelihood is about... O 10/1000 =1% %3D 9/108 = 8% 9/99 =9% 891/1000 = 89% 99/1000 = 99% %3D
- Imagine that 200 people who do not have TB participated in the TB test.The test indicated 85.5% of them showed a negative test result. What’sthe false positive rate?finel avea between はーメシ 4-eA scientist studied the spread of AIDS and concluded that 24% of people contracted the disease. There is a problem with this conclusion. What should the correct conclusion state?
- There are 20 total people that took this survey and 2 people that are older than 70 years old. What percentage of people surveyed are older than 70 years old? 5.0- 4.0- 3.0- 2.0- There are 20 total people that took this survey and people that are younger than 50. What people surveyed are younger than 50 years old? ntage of 1.0- .0- 20 30 40 50 60 70 80 90 100 Age DELL Frequency25/8 -17/8. over. 23/10-13/10Suppose we identify 50 women 50 to 54 years of age who have both a mother and a sister with a history of breast cancer. Five of these women themselves have developed breast cancer at some time in their lives. If we assume that the expected prevalence rate of breast cancer in women whose mothers have had breast cancer is 4%, does having a sister with the disease add to the risk? Explain.