Your boss wants to use absenteeism rates to predict which employees will most likely quit during the next year. What statistic should you use here?

{Narrative: Graduate}The National Collegiate Athletic Association (NCAA) requires colleges to report the graduation rates of their athletes. Here are data from a Big Ten university's report: 45 of the 74 athletes admitted in a speci fic year graduated within 6 years. Does the proportion of athletes who graduate di ffer signi ficantly from the all-university proportion, which is .70 ?1. What is your conclusion? Please use words that a non-statistics student would understand, and justify your answer. Assume a significance level of .05

Is 64.3% a statistic or a parameter? Justify your answer.

I need help figuring out this practice question. It is not for a grade but for my own knowledge

State whether the mean, median, mode is being used. a. In 2002,there were as many people aged 25 and younger in the world as there were people age 25 and older. The majority of full time students carry a load of 15 credit hours per semester. The Average annual return on investment is 16.5 percent.

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You saw back in Chapter 2 that the mean, median, mode, and midrange are used to indicate where data is centered in a data set, or in other words what a typical value in the set is. A question that is often asked is, "If they're all supposed to do the same thing, why is there more than one?" Isn't one enough? In this exercise, you will be given two small sets of data. For each set, a. find the mean, median, mode and midrange b. in your opinion, decide which of the measures BEST represents all the values in the set (best indicates a typical value), and which one does this the WORST. c. post your responses and justify them by explaining why Don't forget to respond to at least one of your classmate's posts. With this exercise, "more is better." I'll elaborate after the deadline. • Set A: the salaries of 10 employees at a company (in thousands of dollars): 50, 50, 50, 50, 50, 50, 50, 50, 50, 500 • Set B: the grades of 9 students on an exam: 20, 25, 30, 35, 40, 45, 100, 100, 100

How not to be ignorant about the world - Hans and Ola Rosling . What did you learn? Has this changed your opinion on global statistics? What question stood out most to you? Do you believe this will change how you view statistics?

What is the role and importance of statistical thinking?

Fortune, help pls!