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Researchers at a science corporation and a university collaborated on a study of how air traffic controllers respond to false alarms. The researchers theorize that

Researchers at a science corporation and a university collaborated on a study of how air traffic controllers respond to false alarms. The researchers theorize that the high rate of false alarms regarding? mid-air collisions leads to the? "cry wolf" effect? (the tendency for air traffic controllers to ignore true alerts in the? future.) The investigation examined data on a random sample of

436 conflict alerts. Each alert was first classified as a? "true" or? "false" alert.? Then, each was classified according to whether or not there was a human controller response to the alert. A summary of the responses is provided in the accompanying table. Do the data indicate that the response rate of air traffic controllers to? mid-air collision alarms differs for true and false? alerts? Test using ?=0.01. What inference can you make concerning the? "cry wolf"? effect?

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Researchers at a science corporation and a university collaborated on a study of how air traffic controllers respond to false alarms. The researchers theorize that the high rate of false alarms regarding mid-air collisions leads to the "cry wolf" effect (the tendency for air traffic controllers to ignore true alerts in the future.) The investigation examined data on a random sample of 436 conflict alerts. Each alert was first classified as a "true" or "false" alert. Then, each was classified according to whether or not there was a human controller response to the alert. A summary of the responses is provided in the accompanying table. Do the data indicate that the response rate of air traffic controllers to mid-air collision alarms differs for true and false alerts? Test using a = 0.01. What inference can you make concerning the "cry wolf" effect? Click the icon to view the contingency table. Specify the null and alternative hypotheses. Choose the correct answer below. O A. He: The classifications True alert and False alert are independent. Ha: The classifications True alert and False alert are dependent. O B. He: The classifications Alert and Response are independent. He: The classifications Alert and Response are dependent. O C. He: The classifications No Response and Response are independent. He: The classifications No Response and Response are dependent. O D. He: The classifications Alert and Response are dependent. He: The classifications Alert and Response are independent. Find the test statistic. =(Round to two decimal places as needed.) Determine the p-value. p-value = (Round to three decimal places as needed.) State the conclusion. Ha- There is evidence to indicate the two classifications are at a = 0.01.Contingency Table No Response Response Totals True alert 5 231 236 False alert 33 167 200 Totals 38 398 436

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