statistics
3. Statistical significance versus Practical significance… When testing a new treatment, what is the difference between statistical significance and practical significance? Can a treatment have statistical significance, but not practical? Why? Determine whether the given source has the potential to create a bias in a statistical study. Why….. problem 5 5 Physician committee for responsible medicine...The physician committee for responsible medicine tends to oppose the use of meat and dairy products in our diets and that organization has received hundreds of thousands of dollars in funding from the foundation to support animal protection. Determine whether the results appear to have statistical significance and also determine whether the results appear to have practical significance. …. Problem 13 and 16 13. Diet and exercise program…. In a study of the kingman diet and exercise program, 4o subjects lost an average of 22 pounds. There is a1% chance of getting such results with a program with no effect. 16. IQ Scores...Most people have IQ between 70 and 130. For $39.99 you can purchase a PC or Mac program from High IQ pro that is claimed to increase your IQ score by 10 to 20 points. The program claims to be the only proven IQ increasing software in the brain training market. But the author of your text could find no data supporting that claim, so let's suppose that these results were obtained: In a study of 12 subjects using the program, the average increase in IQ score is 3 IQ points. There is a 25 percent chance of getting such results if the program has no effect. Identify what is wrong. Problem 26 26. Healthy water…..IN a USA Today online poll, 951 internet users chose to respond, and 57% of them said that they prefer drinking bottle eater instead of tap water