2 large retail companies (W and T) are compared on a Census variable, percent of people who own their home within 3 square miles of the store. The percent that own their home for W is:
84, 79, 73, 81, 74, 77, 64, 78, 78, 78, 61
Percent for T is:
58, 61, 57, 62, 61, 59, 56, 64, 61, 70
- Try the jackknife bootstrap and find the estimate of difference in percentage owning their home between the two companies as to central tendency. Use lambda=.05
In: Statistics and Probability
This argument or definition most clearly illustrates which fallacy?
(For this problem, accept the italicized part as factually true. The fallacy occurs with what this argument does with the facts.) On a full tank of gasoline for each car, on the same roadway under the same
conditions, and being driven at the same speed by the same driver, car A goes 80 miles farther than does car B. Therefore, car A is more fuel efficient.
Ad hominem
Faulty appeal to tradition
Ad populum
Ad astra
False infinitum
Begging the question
In: Psychology
In: Accounting
A runaway train speeds horizontally off a 500.0-m-high cliff. Ignore air resistance for all parts. (a) How long does the train spend in the air? (b) How fast did the train leave the cliff top to land on level ground below, 900.0 m from the base of the cliff? Give your answer in miles per hour. (c) What is the velocity (magnitude and direction) of the train 5 seconds after leaving the cliff? Give your answer with respect to the positive x-axis.
In: Physics
In: Chemistry
to estimate the fuel efficiency of a new compact automobile, an engineer performed n=16 test runs and recorded the miles per gallon (mpg) for each run. the sample mean was 42.2 mpg with standard deviation 8.8.
a) construct a 99% confidence interval for the true mean mileage for this automobile.
- Lower limit= ?
-upper limit= ?
(please round your answers to 1 decimal place)
b) the manufacturer of this automobile claims that it gets 50mpg. Based on the confidence interval, do you think this is a reasonable claim? why or why not?
In: Statistics and Probability
David is driving his prius on the freeway and reaches his exit. The exit has a radius of curvature of 25 m and is banked at 38 degrees. How fast can David travel around the curve on a dry day (where the coefficient of friction between his tires and the road is 1)? How fast can he travel around the curve on a rainy day (when the coefficient of friction between his tires and a wet road is 0.75)? Give your in miles per hour. Show all work and explain each step.
In: Physics
A westbound section of freeway currently has three 12-ft wide lanes, a 6-ft right shoulder, and no ramps within 3 miles upstream and downstream of the segment midpoint. It is on rolling terrain with 10% heavy vehicles and is operating at capacity with a peak-hour factor of 0.9. If the road is expanded to four 11-foot lanes with a 2-foot right shoulder, and traffic after the expansion is projected to increase by 10% with the same heavy vehicle percentage and peak-hour factor, what is the new LOS and estimated density?
In: Civil Engineering
Suppose you manage a local grocery store and yo have learn that a popular national grocery chain is about to open a store in your town a few miles away. Use model of monopolistic competition to analyze the impact of this new store on quantity of output should produce and your store should charge . Explain how opening of this new store affect your business, be asure to address what happen to your customers, supply demand and prices. what will happen to your profiyts. show graphically and explain reasoning in detail
In: Economics
Choose a cost in your organization (or personal life). Now identify what drives that cost. Keep in mind that the cost driver is something that can be counted!
For instance, if I choose gasoline cost, my cost driver is the number of miles I drive to meet at clients' offices. At home, the cost driver for my electric bill is the number of people-days at my house - i.e. some months everyone is gone (low bill), and other times many houseguests makes for a high electric bill. What are your examples?
In: Accounting