The chief of the emergency response services claims that their team responds to emergency distress calls within a 5 km radius in 360 seconds. An independent investigator wishes to test whether or not the presence of a thousand extra cars within the 5 km radius affects the emergency response time by 15.45 seconds. He randomly selects 100 distress calls and estimates the following regression: A Y,- = 345 + 0.23m, where I?! denotes the predicted response time measured in seconds for the [in emergency call and X;- denotes the number of cars {in If] thousands) on the road within a 5 km radius at the time of the t emergency call. If {:11 is the slope coefcient, which of the following options states the investigator's null and alternative hypotheses? NA. H0: 5'1 2 15.45 and H15191 at 15.45. 5. H0: ,61 } 15.45 and H1: 131 5 15.45. (2. H0: 51 = 0.23 and H1: 51 4: 0.23. D. H0131} 0.23 and H1: 1 s 0.23. Suppose |tacf| associated with the test the investigator wishes to conduct is 1 .98. The p-value will be D. (Round your answer to three decimal places.)