Question

85% 1-1 Basic Skills and Concepts Statistical Literacy and Critical Thinking seek mesdical information online or t072 Inteet users who chose to respond e Medical Info USA Tinbay posted this question on it T s websiteHow often do yoa responded with "frequently" What term is used to describe this type of survey in w people surveyed consist of those who decided to respond What is wrong with hus , 38% of them hichs the this type of sampling method 2. Reported Versus Measured In a survey of 1016 autults conducted by Bradley Corpor the respondents said "always a. Identify the sample and the population subjects were asked how often they wash their hands when using a public restroom, u b. Why would better results be obtained by obnerving the hand washing instead about it? 3. Statistical Significance Versus Practical Significance When testing a new treatmer what is the difference between statistical significance and practical significance? Can a ue ment have statistical significance, but not practical significance? 4. Correlation One study showed that for a recent period of 11 years, there was a strong relation (or association) between the numbers of people who drowned in swimming poo the amounts of power generated by nuclear power plants (based on data from the Centers for Disease Control and Prevention and the Department of Energy). Does this imply that increa- ls and ing power from nuclear power plants is the cause of more deaths in swimming pool s? Why or why not? Consider the Source. In Exercises 5-8, determine whether the given source h potential to create a bias in a statistical study 5. Physicians Committee for Responsible Medicine The Physicians Committee for Responsible Medicine tends to oppose the use of meat and dairy products in our that organization has received hundreds of thousands of dollars in funding from the to Support Animal Protection. 6. Arsenic Food and Drug Administration (FDA) in Rice Amounts of arsenic in samples of rice grown in Texas were measured by the 7. Brain Size A data set in Appendix B includes brain volumes from 10 pairs of monozygotic (identical) twins. The data were collected by researchers at Harvard University, Massachusetts General Hospital, Dartmouth College, and the University of California at Davis.

please explain question 4 and 6

Answer 1

4) Since number of people who drowned in swimming pools has nothing to do with the amount of power generated by nuclear power plants. Which means that although there is strong coorelation between the two but actually they are different entities.

Hence increase in power generated by nuclear power plant doesn't increase the number of deaths due to drowning.

6) As FDA is responsible body and samples and samples are taken. Hence there is less chances of Biasing in a statistical study.