Question

a va ls a experimeital or observational study! Explain (b) Can we conclude that student mentors were more effective in inspiring higher g better class attendance than faculty mentors? Why or why not? 4. A researcher was interested in the effects of work (iob outside of school) on student perto The researcher is the friend of a coach and simply asked all athletes how many ho they work and their GPAs. Descriptive statistics showed that when the number o was high, GPA was low. hours per week o can hi reits be uced to mabe Infrences about working and GPA for allstudents at t university? Why or Why not? (b) What type of poor sampling technique was used in the study? (c) Can we conclude that working more hours outside of school causes decreased GPA? Why or why not? 5. In your own words, describe the difference between a population and sample. 6. In your own words, describe the difference between a parameter and statistic. 7. In each setting identify μ and x. (a) Suppose state records show that the average age of women giving birth in the state in 26.3 (b) Suppose a random sample of residents in Horry county, SC had an average age of years. At one hospital, the average age of women giving birth is 25 years. years old. By comparison, the census reports that Sumter county, FL is the oldest co U.S. with an average age of 66.6 years.

Answer 1