1. Seven hundred and seventy-one distance learning students at Long Beach City College, located in Long Beach, California (part of the Los Angeles metropolitan area) responded to surveys in the 2010-11 academic year. Highlights of the summary report are listed in the table below:

1. What percent of the students surveyed do not have a computer at home?
2. About how many students in the survey live at least 16 miles from campus?
3. If the same survey were done at Great Basin College in Elko, Nevada, do you think the percentages would be the same? Why?

-What is the mass, in grams of 37.0 mL of a liquid if its density is 0.20 g/mL?

-An average marching speed is 6.10 nautical miles in 1.00 hours. what would this speed be in units of furlongs per year? 1 furlong = 201.2m - 1.000 nautical mile = 6076 ft

-The speed of sound is 719 miles per 1.00 hours. what is the speed in units of kilometers per day?

-An aquarium measures 110 cm by 55.0 cm by 38.5 cm. what is the volume in units of cubic feet?

-A sample of the element copper has a mass of 28.827 grams. in units of mL, what will be the volume of this sample at 25 degrees celcius.

-To extend a length of 1.00 inches, 2.54 x 10 (to 8th power) average sized atoms would have to be placed in a straight line. How many atoms placed in a straught line would be required to form a line from earth to the moon? distance between the two is 363,104 km.

You are interested in studying the relationship between a home’s selling price and various features of the home (this is called a hedonic price analysis). You estimate the following regression equation, in thousands of dollars:
  
(house price) ̂=175+12bedroom+.8square_footage - 2.5distance

Where bedroom measures the number of bedrooms in the house, square_footage is the house’s square footage, measured in hundreds (e.g. 2,200 square foot house would enter the regression as 22), and distance is the distance from downtown, measured in miles.

a. Do the signs of the coefficients match your a priori expectations? Explain why or why not based on your intuition.

b. Suppose you are a realtor. Use the regression results to estimate the value of a client’s home with the following characteristics: 3,200 square feet; 4 bedrooms; located 6 miles from downtown.
  
c. How would your estimate change if the client decided to add a 200 square-foot bedroom?

****PLEASE include bell shaped curve

The airlines industry measures fuel efficiency by calculating how many miles one seat can travel, whether occupied or not, on one gallon of jet fuel. The following data show the fuel economy, in miles per seat for 17 randomly selected flights on Delta and United. Assume the two population variances for fuel efficiency for the two airline are equal.

Delta .   

United

a. Conduct a the 95% confidence interval estimate of the population?

b. Perform a hypothesis test using α = .05 to determine if the average fuel efficiency  differs between the two airlines.

c. Determine the p-value and interpret the results.

1. An engineer collected the data below showing the speed, s, of a Toyota Camry and its average miles per gallon, M

a. Plot the data above, treating speed as the independent variabl (x). What type of relation, linear or quadratic, appears to exist between speed and miles per gallon?

b. Based on your response above, find either a linear or a quadratic model that describes the relationship between the two variables.

c. Use your model to predict the mpg of a Toyota Camry that is travelling 63 mph

d. Does this model have a maximum value? if so, what is it? if the model does not have a maximum value, find the y-intercept. Does this intercept make sense in the context of the problem

1) What is the linear density in denier if 1.75 pound of yarn has a length of 110 miles?

2) How many 3.8 micronaire fibers will be in the cross-section of a 125 denier yarn?

3) If you want to make a yarn trail around a rectangular field that is 11 feet by 17 feet, what yarn mass would you need in grains if the yarn has a linear density of 55 tex?

4) How many 36 tex fibers are in the cross-section of a 65 gr/yd sliver?

5) What is the length in kilometers of 113.6 pounds of 12 ktex yarn?

6) How many 4.5 dtex fibers are in the cross-section of a 49 grain/yd sliver?

7) What is the linear density of a yarn in ktex if 0.5 miles of yarn weighs 41400 grains?

8) What is the mass in milligrams of 250 fibers in each fiber has a linear density of 3.4 denier and a length of 2.7 inches?

random sample of congressional campaigns from 2002.

FUNDS: Total money raised for the campaign, in thousands of dollars DSIZE: Area of the candidate’s congressional district, in square miles FUNDCARD: 1 = campaign website allowed credit card donations, 0 = campaign website did not allow credit card donations. We wanted to know if amount of money raised for a campaign depends on the how large the district is and whether the campaign accepted credit card donations on its website.

Write one sentence identifying and interpreting the Adjusted R Square statistic. Be specific to the example.

Which independent variable has the strongest association with the dependent variable? How do you know?

Candidate Smith’s district is 471 square miles. Her campaign website allows credit card donations. How much money is she predicted to raise for the campaign? Show your calculation and write one complete sentence that includes your answer.

2) You work for GrubHub delivering takeout to people who ask for delivery. You need to purchase a vehicle and are trying to decide between two choices. The first is a gasoline car that currently sells for $27,500, gets 20 miles to the gallon, has a resale value of $8,500 in 10 years and has maintenance costs of $750 per year. The alternative is an electric car that costs $35,000, has a resale value of $15,000 in 10 years, and has maintenance costs of $500 per year. You expect to drive 12,000 miles per year, and the cost of gasoline is $2.00 per gallon while the price of electricity is $.0666667 per mile. a) Graph the NPV profiles for both cars. (8) b) Which car would you choose? Explain in detail. (8) c) Assume the discount rate is 5%. What would the price of gasoline have to be to make you indifferent between the gas and electric cars?

1.straight-line,

2.units-of-production, and

3. double-declining-balance.

On January 8, 2007, Big 5 purchases a van to transport kayak back to the point of departure at the conclusion of the kayaking adventures they operate. The cost of the van is $38,000. It has an estimated salvage value of $2,000 and is expected to be used for four years. The van is estimated to be driven 11,000 miles in 2007, 16,000 miles in 2008, 19,000 in 2009 and 23,000 in 2010.

1. Compute the annual depreciation expense for each year of the van’s estimated useful life.

2. Explain when and how annual depreciation is recorded. Prepare journal entries

3. Explain the impact on income of this depreciation method versus others over the van’s life.

4. Identify the van’s book value for each year of its life and illustrate the reporting of this amount for any one year.

5. Prepare a depreciation schedule(for each depreciation method)