Lobbying Congress. In the special report, “Bitter Pill: Why Medical Bills Are Killing Us” (TIME, Vol. 181, No. 8, 2013), S. Brill presented an in-depth investigation of hospital billing practices that reveals why U.S. health care spending is out of control. One of the many statistics provided in the report is that, during the period from 1998 through 2012, the pharmaceutical and health-care-products industries and organizations representing doctors, hospitals, nursing homes, health services, and HMOs spent $5.36 billion lobbying Congress.
- a. Under what conditions would the $5.36 billion lobbying-expenditure figure be a descriptive statistic? Explain your answer.
- b. Under what conditions would the $5.36 billion lobbying-expenditure figure be an
inferential statistic ? Explain your answer.
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- 1 It has been observed that social media has been very attractive to millennials and has been used as a major platform where they can share their experiences, emotions, and others. A group of senior high school students is interested to know the length of time a senior high school student spends in a week browsing his or her social media account(s). The data gathered by the group is recorded in the table below. Attention Time (in hours) in a Week Given to Social Media Accounts for Random Sample of n = 50 20.7 14.0 16.7 20.7 22.5 48.2 12.1 7.7 2.9 22.2 23.5 20.3 6.4 34.0 1.3 44.5 39.6 23.8 35.6 20.0 10.9 43.1 7.1 14.3 46.0 21.9 23.4 17.5 29.4 9.6 44.1 36.4 13.8 0.8 24.3 1.1 9.3 19.3 3.4 14.6 15.7 32.5 46.6 19.1 10.6 36.9 6.7 27.9 5.4 14.0 Estimate u, the mean attention time given to social media accounts by senior high school average, how many hours a day do senior high students, using a 99% confidence interval. On thearrow_forwarda. A research survey found that the range of restaurants' profit margins may span between 0% and 15%, and usually restaurants have an average profit margin of 3% to 5%. A restaurant's success is not wholly dependent on the food or drinks it serves, but rather its profit margin is also impacted by a host of other factors like the average cost per customer, type of restaurant operation, among other things. The profit margin data (in percentage) of 13 selected restaurants are 2.3 1.8 2.5 6.1 2.7 5.5 2.3 1.6 Construct a 98% confidence interval for the true profit margin.. 4.8 4.2 4.8 1.9 3.5arrow_forward2.Tuition Fees: The following table shows the average annual tuition and fees at private andpublic 4-year colleges and universities for the school years 2009-2010 through 2014-2015. Year Private Public2009-2010 31,448 15,0142010-2011 32,617 15,9182011-2012 33,674 16,8052012-2013 35,074 17,4742013-2014 36,193 18,3722014-2015 37,385 19,203a. Using 1 for 2009-2010, 2 for 2010-2011, and so on, find the linear correlationcoefficient and the equation of the least-squares line for the tuition and fees at private 4-year colleges and universities, based on the year. Don Honorio Ventura State University Pasig, Candaba, Pampanga MMW103: Mathematics in the Modern Worldb. Using 1 for 2009-2010, 2 for 2010-2011, and so on, find the linear correlationcoefficient and the equation of the least-squares line for the tuition and fees at public 4-year colleges and universities, based on the year.c. Based on the linear correlation coefficients you found in parts a and b, are theequations you wrote in parts…arrow_forward
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