Volkswagen sells the "Golf" in both gasoline-powered and electric-powered versions. The gasoline Golf gets 37 miles/gallon and the electric e-Golf gets 3.42 miles/kWh. Assume the average person drives 12,000 miles per year.
a) What are the annual emissions in kg CO2 for driving the Golf and e-Golf? For gasoline, assume that it emits 8,165 g CO2 per gallon of gasoline. For electricity, use the table below to determine greenhouse gas emissions.
| The share of Electricity Mix | Emissions factor (g CO2/ kWh) | |
| Natural gas | 50 % | 400 |
| Coal | 30 % | 800 |
| Hydro | 10% | 10 |
| Wind | 10% | 15 |
b) If the e-Golf cost $3,000 more than the gasoline Golf, what is the payback time for purchasing the e-Golf instead of the gasoline Golf. Assume the gasoline costs $3/gallon and electricity costs $ 0.10/kWh.
In: Physics
A statisitcs instructor participates in triathalons. the table lists the times in minutes and seconds, he recorded while riding five laps through each mile of a 3-mile loop. Use a .05 significance level to test the claim that is takes the same time to ride each of the miles.
| Mile 1 | 3:15 | 3:25 | 3:23 | 3:22 | 3:22 |
| Mile 2 | 3:19 | 3:23 | 3:20 | 3:17 | 3:19 |
| Mile 3 | 3:34 | 3:30 | 3:29 | 3:30 | 3:29 |
Determine the null and alternate hypotheses.
Find the F statistic
P VALUE
What is the conlusion for this hypothesis test?
(fail to reject, reject) There is (sufficient, insufficient) evidence to warrant the rejection of the claime that the three different miles have the same mean ridetime.
Does one of the miles appear to have a hill?
In: Statistics and Probability
Assume that a simple random sample has been selected from a
normally distributed population and test the given claim. Use
either the traditional method or P-value method as indicated.
Identify the null and alternative hypotheses, test statistic,
critical value(s) or P-value (or range of P-values) as appropriate,
and state the final conclusion that addresses the original claim.
A shipping firm suspects that the mean life of a certain brand of
tire used by its trucks is less than 33,000 miles. To check the
claim, the firm randomly selects and tests 18 of these tires and
gets a mean lifetime of 32,250 miles with a standard deviation of
1200 miles. At α = 0.05, test the shipping firm's claim.
a) State the Null and alternative hypotheses
b) Find the test statistic . (1 mark)
c) Fine the critical value. ( 1 mark)
d) Draw a final conclusion that addresses the claim ( 2 marks)
In: Statistics and Probability
The distance a vehicle travels can be calculated as
follows:
Distance = Speed * Time
For example, if a train travels 40 miles-per-hour for three hours,
the distance traveled is 120 miles. Write a program that asks for
the speed of a vehicle (in miles-per-hour) and the number of hours
it has traveled. Both values are assumed to be integers. It should
use a
loop to display the distance a vehicle has traveled for each hour
of a time period specified by the user. For example, if a vehicle
is traveling at 40 mph for a three-hour time period, it should
display a report similar to the one that follows:
Hours Distance Traveled
---------------------------
1 40
2 80
3 120
Do not accept a negative number for speed and do not accept any
value less than 1 for time traveled.
Sample Run
java DistanceTravelled
Enter vehicle speed (in mph): 60↵
Enter time travelled (in hrs): 2↵
Hour→Distance Travelled↵
--------------------------↵
1→→60↵
2→→120↵
In: Computer Science
ASSIGNMENT 5 REQUIREMENTS
The distance a vehicle travels can be calculated as follows:
distance = speed * time
For example, if a train travels 40 miles per hour for 3 hours,
the distance traveled is 120 miles.
Write a program that asks the user for the speed of a vehicle
(in miles per hour) and how many hours it has traveled.
The program should then use a loop to display the distance the
vehicle has traveled for each hour of that time period.
Here is an example of the output:
What is the speed of the vehicle in mph? 40
How many hours has it traveled? 3
Hour Distance Traveled
--------------------------------
1. 40
2. 80
3. 120
Input Validation:
Do not accept a negative number for speed and
do not accept any value less than 1 for time traveled.
=================================================================
TEST SET
============================
TEST CASE SPEED HOURS
1. 55 12
2. 65 10
3. 75 8
----------------------------
In: Computer Science
Last week we learned more about important concepts in the area of Distribution and about the job of Revenue Manager. Two of the most heavily negotiated points in the distribution channel agreements are Last Room Availability and Rate Parity. Which of these do you feel is the most beneficial to the hotel, and why?
In: Operations Management
4. Understanding the facts/background of a transaction: Caesars Entertainment is in negotiations to purchase a new hotel. You are an analyst in the accounting policy department and are in the first step of the research process (understanding the facts/background of the transaction). Identify three resources you could consult to gather additional background/precedent for this issue.
In: Accounting
In: Economics
"The City Ledger"
define what city-ledger, then categories and discussed/ create a list of best practices for a hotel chain of your choice. (Be sure to briefly describe the chain in your response.)
Analyze the mechanics of the entry and make at least one recommendation for improving the process. Please be as creative as you like.
In: Operations Management
Using Runge-Kutta method, compute y(0.3), from the equation dy dx = xy 1+x2 with y(0) = 1, take h = 0.1
In: Advanced Math