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In a recent academic year, many public universities in the United States raised tuition and fees due to a decrease in state subsidies. The change in the cost of tuition, a shared dormitory room, and the most popular meal plan from the previous academic year for a sample of 10 public universities were as follows: Value Z-score $1,589 $593 $1,223 $869 $423 $1,720 $708 $1,425 $922 $308 (give your answer rounded to 2 decimal points) Referring to the values above, what are the values the Z scores of the change in cost? A survey of banks revealed the following distribution for the interest rate being charged on a home loan (based on a 30-year mortgage with a 10% down payment). Interest Rate ----m If a bank is selected at random from this distribution, what is the chance that the interest rate charged on a home loan will exceed 3.49%? O 1.00 O 0.59 O 0.41 O 0.06 TABLE 4-1 Mothers Against Drunk Driving is a very visible group whose main focus is to educate the public about the harm caused by drunk drivers. A study was recently done that emphasized the problem we all face with drinking and driving. Four hundred accidents that occurred on a Saturday night were analyzed. Two items noted were the number of vehicles involved and whether alcohol played a role in the accident. The numbers are shown below: Number of Vehicles Involved Did nlcnhnl play a rule? Yes No Totals Referring to Table 4-1, what proportion of accidents involved more than one vehicle? O 275/400 or 68.75% 0 75/400 or 18.75% 0 325/400 or 81.25% 50/400 or 12.5% 0 TABLE 4-1 Mothers Against Drunk Driving is a very visible group whose main focus is to educate the public about the harm caused by drunk drivers. A study was recently done that emphasized the problem we all face with drinking and driving. Four hundred accidents that occurred on a Saturday night were analyzed. Two items noted were the number of vehicles involved and whether alcohol played a role in the accident. The numbers are shown below: Number of Vehicles Involved Did alcohol play a rule? Yes No Totals Referring to Table 4-1, what proportion of accidents involved alcohol and a single vehicle? 0 195/400 or 48.75% 0 25/400 or 6.25% 0 50/400 or 12.5% 245/400 or 61.25% 0 TABLE 4-1 Mothers Against Drunk Driving is a very visible group whose main focus is to educate the public about the harm caused by drunk drivers. A study was recently done that emphasized the problem we all face with drinking and driving. Four hundred accidents that occurred on a Saturday night were analyzed. Two items noted were the number of vehicles involved and whether alcohol played a role in the accident. The numbers are shown below: Number of Vehicles Involved Did nlcnhnl play a role? 3' Yes No Totals Referring to Table 4-1, what proportion of accidents involved alcohol or a single vehicle? 0 195/400 or 48.75% 0 25/400 or 6.25% 0 50/400 or 12.5% 245/400 or 61.25% 0 TABLE 4-1 Mothers Against Drunk Driving is a very visible group whose main focus is to educate the public about the harm caused by drunk drivers. A study was recently done that emphasized the problem we all face with drinking and driving. Four hundred accidents that occurred on a Saturday night were analyzed. Two items noted were the number of vehicles involved and whether alcohol played a role in the accident. The numbers are shown below: Number uf Vehicles Involved Did alcohol play a role? Yes Referring to Table 4-1, given alcohol was involved, what proportion of accidents involved a single vehicle? C) 50/75 or 66.67% 0 50/170 or 29.41% 0 120/400 or 30% 120/170 or 70.59% 0 TABLE 4-1 Mothers Against Drunk Driving is a very visible group whose main focus is to educate the public about the harm caused by drunk drivers. A study was recently done that emphasized the problem we all face with drinking and driving. Four hundred accidents that occurred on a Saturday night were analyzed. Two items noted were the number of vehicles involved and whether alcohol played a role in the accident. The numbers are shown below: Number of Vehicles ' Involved Did alcohol play a role? 1 2 3 Yes No Totals Referring to Table 4-1, given that multiple vehicles were involved, what proportion of accidents involved alcohol? O 120/230 or 52.17% O 120/170 or 70.59% O 120/325 or 36.92% 120/400 or 30% O TABLE 4-1 Mothers Against Drunk Driving is a very visible group whose main focus is to educate the public about the harm caused by drunk drivers. A study was recently done that emphasized the problem we all face with drinking and driving. Four hundred accidents that occurred on a Saturday night were analyzed. Two items noted were the number of vehicles involved and whether alcohol played a role in the accident. The numbers are shown below: Number of Vehicles Involved Did alcohol play a rule? 3' Yes No Totals Referring to Table 4-1, given that alcohol was not involved, what proportion of the accidents were single vehicle? 0 25/230 or 10.87% O 25/75 or 33.33% 0 50/75 or 66.67% 0 50/170 or 29.41%