Figure A shows a scatterplot with the regression line for pulse rates for a large number of students in a college statistics class before and after running in place for two minutes. Figure B shows the residual plot of the data. Figure C shows a QQ plot of the residuals. Is the linear regression model appropriate for these data? Why or why not? Assume the observations are independently measured.
Answer to relevant QuestionsA sample of students were questioned to determine how much they would be willing to pay to see a movie in a theater that served dinner at the seats. The male students responded (in dollars): 10, 15, 15, 25, and 12. The ...The 2009 World Almanac and Book of Facts predicted that the United States will have an elderly population (65 and older) of 88,547,000 in the year 2050 and that this will be 20.2% of the population. What is the total ...A doctor who believes strongly that antidepressants work better than "talk therapy" tests depressed patients by treating half of them with antidepressants and the other half with talk therapy. After six months the patients ...A 2009 study analyzed data from the National Longitudinal Study of Adolescent Health. Participants were studied into adulthood. Each study participant was categorized as to whether they were obese or not and whether they ...Figure A shows a scatterplot for the number of semesters that students have attended a community college and the number of credits they have accumulated. Figure B shows a residual plot of the same data. Is the linear ...
Post your question