C4. Suppose we used General Social Survey data to examine the relationship between educational attainment (RDEGREE: 0 = less than high school, 1 = bigh school degree, 2 = some college or more) and the variable HELPPOOR, which measures support of the statement that the government in Washington should do everything possible to improve the Standard of living of all poor Americans. The obtained chi-square is 40.43. Based on an alpha of .05, do you reject the null hypothesis? Explain. %3D %3D %3D

Suppose the observational units in a study are the patients arriving at an emergency room on a given day, Nov 11, 2019.  Number of patients that arrive before noon     is a qualitative variable       is a quantitative variable       is not a variable

Refer to the data presented in Exercise 2.86. Note that there were 50% more accidents in the 25 to less than 30 age group than in the 20 to less than 25 age group. Does this suggest that the older group of drivers in this city is more accident- prone than the younger group? What other explanation might account for the difference in accident rates?

Ride services are on the rise, such as Uber and Lyft. You wondered if the recent news reports of crime occurring with these ride services impacted the usage of them, especially with women. You decide to conduct  a survey about ride service usage among male and female college students. The results showed that 19 males use ride services and 11 do not. While 12 females use ride services and 18 do not. Calculate the chi-square statistic:

The older that an adult tends to be before deciding to get married, the longer the person's marriage tends to last. What type of correlation exists between age of marriage and the number of years the marriage lasts?    A. positive B. negative

kln 2.18 The report "Trends in Education 2010: Community Colleges" (www.collegeboard.com/trends) included the accompanying information on student debt for students graduating with an AA degree from a public community college in 2008. Debt Relative Frequency None 0.62 Less than $10,000 0.23 Between $10,000 and $20,000 0.10 More than $20,000 0.05 a. Use the given information to construct a bar chart. b. Comment on student debt for public community college graduates.

E Question Help In a clinical trial of 2150 subjects treated with a certain drug, 30 reported headaches. In a control group of 1643 subjects given a placebo, 26 reported headaches. Denoting the proportion of headaches in the treatment group by p, and denoting the proportion of headaches in the control (placebo) group by pe, the relative risk is p/p. The relative risk is a measure of the strength of the effect of the drug treatment. Another such measure is the odds ratio, which is the ratio of the odds in favor of a headache for the Pi/ (1-Pt) treatment aroun to the odds in favor of a headache for the control (nlacebo) aroup found hy evaluatina. Find the relative risk for the headache data. The relative The relative risk = (Round to three decimal places as needed.) Enter your answer in the answer box and then click Check Answer. Clear All Check Answer 2 remaining 12:04 PM 10/29/2020 耳| @