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The ages (in years) of 10 men and their systolic blood pressures (in millimeters of mercury) are shown in the attached data table with a

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The ages (in years) of 10 men and their systolic blood pressures (in millimeters of mercury) are shown in the attached data table with a sample correlation coefficient r of 0.913. Remove the data entry for the man who is 49 years old and has a systolic blood pressure of 198 millimeters of mercury from the data set and find the new correlation coefficient. Describe how this affects the correlation coefficient r. Use technology. Click the icon to view the data set. The new correlation coefficient r going from 0.913 to]. (Round to three decimal places as needed.)You work for an insurance company and are studying the relationship between types of crashes and the vehicles involved. As part of your study, you randomly select 3095 vehicle crashes and organize the resulting data as shown in the contigency table. At a =0.01, can you conclude that the type of crash depends on the type of vehicle? Complete parts (a) through (d). Vehicle Type of crash Car Pickup Sport utility Single-vehicle 879 384 294 Multiple-vehicle 1141 205 192 (b) Determine the degrees of freedom, find the critical value, and identify the rejection region. Calculate the degrees of freedom. d.f. = Find the critical value. 3 =(Round to three decimal places as needed.) Which region below is the correct rejection region? OA. X2 zX8 OB. x2 > x3 OC. x2 sx OD. X2

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