5,6,7,8,9

- To be completed independently - No teams are to be used for this project. - Clearly label each answer (using bullets) to avoid confusion when grading and show your work. According to the dataset below, the mean age of cyclists killed each year during the decade from 1998 to 2010 appears to be increasing, The normal assumption is that these deaths are due to unsafe biking habits. An insurance company analyst thinks the data on ages of cydist accident deaths are due to the entire population of cyclists getting older and having slower reaction times, not to a change in the safe riding habits of older cyclists. 1. Draw a scatterplot (or use Excel), take a screenshot falt + print screen), and paste your screenshot. 2. Summarize what the scatterplot says about the trend and level of strength of the data. 3. Draw a scatterplot (or use Excel) of the residuals for the linear model, take a screershot (alt + print screen), and paste your screenshot. Comment on its significance. 4. When examining the ages of victims in crcle/car accidents, how would you label each axis? What is the explanatory (independent) and response (dependent) variable? 5. Using the data provided in item 177, what is the t-value for this data (write it out or use Ercel)? 6. Show the cilculation for the correlation coeflicient and explain your anwwe fcarect arwwer provided below): 7. State the degee of fredom (an) for this dataset. 8. Using the following summary statistcs for the cydist data, state the y intercept and sope for the bine of best fit (see notes on the neat page). =0+/x 9. Find and interpret the R ( ooefficient of Variatian) for the regressian of cyciist death agei n. time. What does the coefficient of Variation value teil in? 20. Theorecically, what is the mean age for cvilut acodent deaths in zo11