Question

In: Statistics and Probability

1. A company with a fleet of 1500 cars found that the emissions systems of 17...

1. A company with a fleet of 1500 cars found that the emissions systems of 17 out of the 53 randomly selected cars from their fleet failed to meet pollution control guidelines. If a significant number of vehicles are found to be out of compliance, the whole fleet will need to be inspected and brought up to current regulations. Is there strong evidence that more than 20% of the fleet might be out of compliance? Use a 1% level of significance. Identify Type I and II errors and their consequences.
2. A new formula for a propellant missile is being tested to determine if it is superior to the current formula. From past experience, the mean distance traveled has been 340 miles. Twelve missiles with the new propellant are fired into the Pacific Ocean and their distances measured. The data is given below. Test at the 5% level of significance.
375 376 304 345 368 329 372 347 342 391 400 325

Solutions

Expert Solution


orchestra answered 2 years ago
Next > < Previous

Related Solutions

A company with a large fleet of cars sets a goal of attaining a fleet average...
A company with a large fleet of cars sets a goal of attaining a fleet average of at least 26 miles per gallon of gasoline. To see if that goal is being met, they check the gasoline usage for 50 company trips chosen at random, finding a mean of 25.02 mpg and a standard deviation of 4.83 mpg. a) Is this a strong evidence that they have failed to attain their fuel economy goal? Assume significance level of 0.1. b)...
1.UC Cars operates a fleet of cars for hire in Singapore. In planning its operations for...
1.UC Cars operates a fleet of cars for hire in Singapore. In planning its operations for February, UC Cars estimated that it would carry fare-paying passengers for 40,000 km at an average price of $2.00 per km. Past experience suggested that the total mileage (km run) should amount to 250% of the fare-paid km. At the beginning of October, UC Cars employed ten drivers and decided that this number would be adequate for the month ahead. The following cost estimates...
Your company is considering the purchase of a fleet of cars for $200,000. It can borrow...
Your company is considering the purchase of a fleet of cars for $200,000. It can borrow at 6%. The cars will be used for four years. At the end of four years they will be worthless. You call a leasing agent and find that the cars can be leased for $55,000 per year. The corporate tax rate is 34% and the cars belong in CCA class 10 (a 30% class), what is the net advantage to leasing? a. $1,802 b....
Your company is considering the purchase of a fleet of cars for $200,000. It can borrow...
Your company is considering the purchase of a fleet of cars for $200,000. It can borrow at 6%. The cars will be used for four years. At the end of four years, they will be worthless. You call a leasing agent and find that the cars can be leased for $55,000 per year. The corporate tax rate is 34% and the cars belong in CCA class 10 (a 30% class), what is the net advantage to leasing? Select one: a....
Your company is considering the purchase of a fleet of cars for $195,000. It can borrow...
Your company is considering the purchase of a fleet of cars for $195,000. It can borrow at 8.5%. The cars will be used for four years. At the end of four years they will be worthless. You call a leasing agent and find that the cars can be leased for $55,000 per year. The corporate tax rate is 34% and the cars belong in CCA class 10 (a 30% class), what is the net advantage to leasing? A) $6,594 B)...
A company with a large fleet of cars hopes to keep gasoline costs down and sets...
A company with a large fleet of cars hopes to keep gasoline costs down and sets a goal of attaining a fleet average of at least 2424 miles per gallon. To see if the goal is being​ met, they check the gasoline usage for 5050 company trips chosen at​ random, finding a mean of 22.0522.05 mpg and a standard deviation of 5.555.55 mpg. Is this strong evidence they have failed to attain their fuel economy​ goal? Complete parts a through...
A company is trying to choose between three types of cars for its fleet: national, Japanese...
A company is trying to choose between three types of cars for its fleet: national, Japanese or European. Five cars of each type are ordered and after traveling 10,000 miles with them, the cost per mile traveled (cents) of each car is calculated. Nationals: 18.0, 17.6, 17.4, 19.1, 16.9 Japanese: 15.1, 16.6, 16.1, 15.3, 15.4 Europeans: 19.3, 17.4, 17.1, 18.6, 16.1 1) Make the hypothesis test (6 steps). In step 1, Ho and H1, write them in a text (don't...
Need a Hair Cut Ltd. operates a fleet of rental cars in Kingsvilli. The company has...
Need a Hair Cut Ltd. operates a fleet of rental cars in Kingsvilli. The company has determined that if a car is driven 105,000 kilometres during a year, the average operating cost is 12.665 cents per kilometre. If a car is driven only 70,000 kilometres during a year, the average operating cost increases to 14.5 cents per kilometre. Note: Please do not round the decimal places of cost per kilometre, which is 12.665 and 14.5 cents per km. Required: Using...
A city in Ohio is considering replacing its fleet of gasoline powered cars with electric cars....
A city in Ohio is considering replacing its fleet of gasoline powered cars with electric cars. The manufacturer of the electric cars claims that this municipality will experience significant cost savings over the life of the fleet if it chooses to pursue this conversion. If the manufacturer is correct, the city will save about $1.5 million. If the new technology employed within the electric cars is faulty as some critics suggest, it will cost the city $675,000. A third possibility...
1. According to the EPA, CO2 emissions from driving cars are one of the U.S.’s major...
1. According to the EPA, CO2 emissions from driving cars are one of the U.S.’s major contributors to pollution and greenhouse gas emissions. Use the models in the book to design an economic policy you think the govt. could use to reduce these CO2 emissions from cars?
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT