In its Fuel Economy Guide for 2008 model vehicles, the Environmental Protection Agency gives data on 1152 vehicles. There are a number of outliers, mainly vehicles with very poor gas mileage. If we ignore the outliers, however, the combined city and highway gas mileage of the other 1120 or so vehicles is approximately Normal with mean 18.7 miles per gallon (mpg) and standard deviation 4.3 mpg. The 2008 Chevrolet Malibu with a four-cylinder engine has combined gas mileage 25 mpg. What percent of all vehicles have worse gas mileage than the Malibu? % How high must a 2008 vehicle's gas mileage be in order to fall in the top 10% of all vehicles? (The distribution omits a few high outliers, mainly hybrid gas-electric vehicles.) The quartiles of any distribution are the values with cumulative proportions 0.25 and 0.75. They span the middle half of the distribution. What are the quartiles of the distribution of gas mileage? Gas mileage of the first quartile: Gas mileage of the third quartile: The quintiles of any distribution are the values with cumulative proportions 0.20, 0.40, 0.60, and 0.80. What are the quintiles of the distribution of gas mileage? Gas mileage of 0.20 of the distribution: Gas mileage of 0.40 of the distribution: Gas mileage of 0.60 of the distribution: Gas mileage of 0.80 of the distribution:
please explain how you got your answer
In: Statistics and Probability
DO NOT ANSWER IF YOU ARE UNSKILLED IN THIS AREA! THE DATA CHART IS CORRECT & COMPLETE!
Exercise 14-9 Algo
A realtor studies the relationship between the size of a house (in square feet) and the property taxes (in $) owed by the owner. The table below shows a portion of the data for 20 homes in a suburb 60 miles outside of New York City. [You may find it useful to reference the t table.]
| Property Taxes | Size |
| 21870 | 2467 |
| 17456 | 2493 |
| 18105 | 1876 |
| 15685 | 1055 |
| 43905 | 5603 |
| 33687 | 2518 |
| 15266 | 2257 |
| 16800 | 1989 |
| 18274 | 2025 |
| 16798 | 1343 |
| 15181 | 1371 |
| 36065 | 3003 |
| 31060 | 2816 |
| 42186 | 3362 |
| 14359 | 1544 |
| 38917 | 4064 |
| 25393 | 4083 |
| 22953 | 2469 |
| 16184 | 3587 |
| 29268 | 2860 |
| Property Taxes | Size | ||||
| 21,870 | 2,467 | ||||
| 17,456 | 2,493 | ||||
| 29,268 | 2,493 | ||||
a-1. Calculate the sample correlation coefficient rxy. (Round intermediate calculations to at least 4 decimal places and final answers to 4 decimal places.)
a-2. Interpret rxy.
c-1. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.)
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In: Statistics and Probability
Imagine that Mark contracts with the fictional J.B. Used Cars to purchase a used 2009 red, automatic Toyota Camry for $14,988 through a special two-day sale. Mark pays in full for the car and is told that the car lot will deliver the Camry to Mark's house free of charge as soon as the transfer of title is cleared. However, the seller begins making excuses and fails to ever deliver the car. Thus, the seller is in breach of contract because Mark already paid for the Camry and never received his vehicle. Mark needs a new car soon, so he decides to obtain cover instead of cancelling the contract with the seller. He searches at other local car dealers and, two days after finding J.B. Used Cars in breach of contract, he finds another Camry that he is satisfied with. It is a 2009 silver Camry that costs $17,982; it is an automatic, and it has roughly the same number of miles as the Camry from J.B. Used Cars. This price is comparable to the standard Blue Book price for a 2009 Camry.
In: Operations Management
| Should you generate electricity with your own personal wind turbine? That depends | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| on whether you have the right amount of wind on your site. For a personal wind | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| turbine to work properly, your site should have an annual average wind speed of at | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| least 10 miles per hour, according to the Wind Energy Association. Lower winds do | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| not provide enough energy. One candidate site was monitored last year, with wind | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| speeds recorded every 8 hours. A total of 49 readings of wind speeds average 9.56 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| mph with a standard deviation of 2.52 mph. You've been asked to make a statistical | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| report to help the landowner decide whether to place a wind turbine at the site. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Test whether the average wind speed is at least 10 mph at the .025 level of | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| significance. Show Your Work! Formula(s), Substitutions, Answers! Round your critical | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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value to 3 decimal places, and your pvalue to 4 decimal places.
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In: Statistics and Probability
2. The following data was gathered by Taxon Auto to model the relationship between automobile weight and miles per gallon.
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a. Which variable is the dependent or response variable?
b. Which is the independent or explanatory variable?
Enter the data into an Excel spreadsheet.
c. Create a scatterplot
i. Interpret your scatterplot
ii. Based on the scatterplot - does it appear that linear regression would be a useful tool for prediction of ridership?
Regardless of your answer to c. Run the regression analysis in Excel and use the output to answer the following questions:
d. What is the value of the correlation coefficient? How would you interpret it?
e. What is the value of the coefficient of determination? How would you interpret it?
f. Write the hypotheses for the test of the slope.
g. What is the p-value for the test of the slope? What is your conclusion based on this result?
h. What is the regression formula the represents the relationship between auto weight and MPG?
i. Use your formula to predict the MPG for a car that weighs 3500 pounds. (show formula)
j. Use your formula to predict the MPG for a car that weighs 2100 pounds. (show formula)
In: Statistics and Probability
|
SecuriCorp operates a fleet of armored cars that make scheduled pickups and deliveries in the Los Angeles area. The company is implementing an activity-based costing system that has four activity cost pools: Travel, Pickup and Delivery, Customer Service, and Other. The activity measures are miles for the Travel cost pool, number of pickups and deliveries for the Pickup and Delivery cost pool, and number of customers for the Customer Service cost pool. The Other cost pool has no activity measure because it is an organization-sustaining activity. The following costs will be assigned using the activity-based costing system: |
| Driver and guard wages | $ | 1,080,000 |
| Vehicle operating expense | 510,000 | |
| Vehicle depreciation | 390,000 | |
| Customer representative salaries and expenses | 420,000 | |
| Office expenses | 280,000 | |
| Administrative expenses | 580,000 | |
| Total cost | $ | 3,260,000 |
| The distribution of resource consumption across the activity cost pools is as follows: |
| Travel | Pickup and Delivery |
Customer Service |
Other | Totals | ||||||
| Driver and guard wages | 50 | % | 35 | % | 10 | % | 5 | % | 100 | % |
| Vehicle operating expense | 70 | % | 5 | % | 0 | % | 25 | % | 100 | % |
| Vehicle depreciation | 60 | % | 15 | % | 0 | % | 25 | % | 100 | % |
| Customer representative salaries and expenses | 0 | % | 0 | % | 90 | % | 10 | % | 100 | % |
| Office expenses | 0 | % | 20 | % | 30 | % | 50 | % | 100 | % |
| Administrative expenses | 0 | % | 5 | % | 60 | % | 35 | % | 100 | % |
| Required: |
|
Complete the first stage allocations of costs to activity cost pools. |
In: Accounting
1. A building was purchased for $240,000 and has a useful life of 30 years, and a residual value of $90,000. After it has been used 5 years, its accumulated depreciation using the straight-line method would be
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a. $12,500 |
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b. $50,000 |
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c. $25,000 |
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d. $40,000 |
2.
Massachusetts Mining Company purchased a gravel pit for $2,500,000. It is estimated that 5 million tons of gravel can be extracted over the pit's useful life, with a residual value of $700,000. If 4 million tons are extracted and sold during the first year, how much depletion expense should be recorded?
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a. $2,000,000 |
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b. $1,440,000 |
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c. $1,800,000 |
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d. $1,050,000 |
3. If an asset cost $68,000 and has a residual value of $4,000 and a useful life of five years, the depreciation in the third year, using the double-declining balance method, would be (assume a full year of depreciation in the first year):
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a. $5,625 |
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b. $9,216 |
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c. $12,000 |
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d. $9,792 |
4. Which of the following would not be charged (debited) to the Vehicles account for the cost of a used car purchase?
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a. tax, title, and registration costs incurred prior to putting the car in use |
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b. the cost of an oil change after the car has been in use at our business for 3,000 miles |
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c. the purchase price of the car |
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d. the cost of having pre-existing bumper damage repaired before putting the car in use |
In: Accounting
SecuriCorp operates a fleet of armored cars that make scheduled pickups and deliveries in the Los Angeles area. The company is implementing an activity-based costing system that has four activity cost pools: Travel, Pickup and Delivery, Customer Service, and Other. The activity measures are miles for the Travel cost pool, number of pickups and deliveries for the Pickup and Delivery cost pool, and number of customers for the Customer Service cost pool. The Other cost pool has no activity measure because it is an organization-sustaining activity. The following costs will be assigned using the activity-based costing system:
| Driver and guard wages | $ | 980,000 |
| Vehicle operating expense | 410,000 | |
| Vehicle depreciation | 290,000 | |
| Customer representative salaries and expenses | 320,000 | |
| Office expenses | 180,000 | |
| Administrative expenses | 480,000 | |
| Total cost | $ | 2,660,000 |
The distribution of resource consumption across the activity cost pools is as follows:
| Travel |
Pickup and Delivery |
Customer Service |
Other | Totals | ||||||
| Driver and guard wages | 50 | % | 35 | % | 10 | % | 5 | % | 100 | % |
| Vehicle operating expense | 70 | % | 5 | % | 0 | % | 25 | % | 100 | % |
| Vehicle depreciation | 60 | % | 15 | % | 0 | % | 25 | % | 100 | % |
| Customer representative salaries and expenses | 0 | % | 0 | % | 90 | % | 10 | % | 100 | % |
| Office expenses | 0 | % | 20 | % | 30 | % | 50 | % | 100 | % |
| Administrative expenses | 0 | % | 5 | % | 60 | % | 35 | % | 100 | % |
Required:
Complete the first stage allocations of costs to activity cost pools.
In: Accounting
SecuriCorp operates a fleet of armored cars that make scheduled pickups and deliveries in the Los Angeles area. The company is implementing an activity-based costing system that has four activity cost pools: Travel, Pickup and Delivery, Customer Service, and Other. The activity measures are miles for the Travel cost pool, number of pickups and deliveries for the Pickup and Delivery cost pool, and number of customers for the Customer Service cost pool. The Other cost pool has no activity measure because it is an organization-sustaining activity. The following costs will be assigned using the activity-based costing system:
| Driver and guard wages | $ | 980,000 |
| Vehicle operating expense | 410,000 | |
| Vehicle depreciation | 290,000 | |
| Customer representative salaries and expenses | 320,000 | |
| Office expenses | 180,000 | |
| Administrative expenses | 480,000 | |
| Total cost | $ | 2,660,000 |
The distribution of resource consumption across the activity cost pools is as follows:
| Travel |
Pickup and Delivery |
Customer Service |
Other | Totals | ||||||
| Driver and guard wages | 50 | % | 35 | % | 10 | % | 5 | % | 100 | % |
| Vehicle operating expense | 70 | % | 5 | % | 0 | % | 25 | % | 100 | % |
| Vehicle depreciation | 60 | % | 15 | % | 0 | % | 25 | % | 100 | % |
| Customer representative salaries and expenses | 0 | % | 0 | % | 90 | % | 10 | % | 100 | % |
| Office expenses | 0 | % | 20 | % | 30 | % | 50 | % | 100 | % |
| Administrative expenses | 0 | % | 5 | % | 60 | % | 35 | % | 100 | % |
Required:
Complete the first stage allocations of costs to activity cost pools.
In: Accounting
Supply and Demand: the Revenge of the Exogenous Shock. In this problem, we consider many changes (exogenous shocks) that can affect the market for oil. Predict how each of the following events will affect the equilibrium price and quantity in the market for oil.
a. Cars are becoming more fuel efficient, and therefore get more miles to the gallon.
b. The winter is exceptionally cold this year.
c. A major discovery of new oil is made off the coast of Norway.
d. The economies of some major oil-using nations, like Japan, slow down.
e. A war in the Middle East disrupts oil-pumping schedules.
f. Landlords install additional insulation in buildings.
g. The price of solar energy falls dramatically.
h. Chemical companies invent a new, popular kind of plastic made from oil.
In: Economics