Question

For a project in his statistics class, Mark conducted a survey in which he asked participants...

For a project in his statistics class, Mark conducted a survey in which he asked participants to assign status ratings to three photographs of cars (Corvette, Toyota RAV4, Honda Civic) on a scale of 1 to 10. The average ratings were: (a) Corvette 8.3; (b) RAV4 6.7; (c) Civic 3.9). On the basis of t-tests, he concluded that all of the differences among the three mean ratings were statistically significant. He was disappointed to learn that he received a low grade on the project due to the fact that he had used the wrong statistical test. Explain why Mark's approach to analyzing his data was incorrect. State which statistical test he should have used and explain why?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
For a project in his statistics class, Mark conducted a survey in which he asked participants...
For a project in his statistics class, Mark conducted a survey in which he asked participants to assign status ratings to three photographs of cars (Corvette, Toyota RAV4, Honda Civic) on a scale of 1 to 10. The average ratings were: (a) Corvette 8.3; (b) RAV4 6.7; (c) Civic 3.9). On the basis of t-tests, he concluded that all of the differences among the three mean ratings were statistically significant. He was disappointed to learn that he received a low...
Mark from Mark's Mowers wants to make some changes to his business. He has asked each...
Mark from Mark's Mowers wants to make some changes to his business. He has asked each of his department managers (Production, Marketing and Sales) to submit a plan for growth to you the General Manager. Currently Mark is selling 500 lawn mowers a month at $250 each. His variable cost per lawnmower is $180 each. His fixed cost per month are $ 25,000. For purposes of this project assume that each scenario is within the relevant range (no larger space...
Mark from Mark's Mowers wants to make some changes to his business. He has asked each...
Mark from Mark's Mowers wants to make some changes to his business. He has asked each of his department managers (Production, Marketing and Sales) to submit a plan for growth to you the General Manager. Currently Mark is selling 500 lawn mowers a month at $250 each. His variable cost per lawnmower is $180 each. His fixed cost per month are $ 25,000. For purposes of this project assume that each scenario is within the relevant range (no larger space...
Suppose a researcher RW decides to give his nine participants a series of 50 photographs. He...
Suppose a researcher RW decides to give his nine participants a series of 50 photographs. He asks the participants to rank order (from 1-50) how well-dressed the individuals in the photograph were and to rank order (from 1-50) how intelligent they thought the individuals in the photograph were. One of the photographs was of a well known actor. The well-dressed rankings and the intelligence rankings for this one photo are as follows. WELL-DRESSED                                INTELLIGENT 14                                                        12 35                                                        39 16                                                        17...
Hugh Casey slumped at his desk, totally dejected. He just read the letter from Fulbright University...
Hugh Casey slumped at his desk, totally dejected. He just read the letter from Fulbright University informing him that his application for admission into the school of medicine had been rejected. It had been his dream since high school to become a doctor, and in particular to be a heart surgeon. Hugh had been an excellent student in high school and was admitted to the highly selective Seymour College despite achieving only a modest score on the college admissions test....
Jane Doe et al. randomly assigned students in an economics class to lecture sessions in which...
Jane Doe et al. randomly assigned students in an economics class to lecture sessions in which taking notes on laptops was permitted, or to lecture sections from which laptops were banned. They tested for differences in mean final exam score between these two treatments, with three separate analyses for students with GPAs in the bottom, middle, or top third of the class GPA distribution. Their results are summarized in the table below, which shows the differences in mean final exam...
Which of the following best describes a project management plan? The project charter, WBS, and project...
Which of the following best describes a project management plan? The project charter, WBS, and project scope statement The schedule, management plans, and budget A formal, approved document used to control the project The project manager's plan for managing and controlling the work The engineering department wants the project objective to be a 10 percent improvement in throughput. The information technology department wants no more than 5 percent of its resources to be used on the project. Management, who is...
What tools could AA leaders have used to increase their awareness of internal and external issues?...
What tools could AA leaders have used to increase their awareness of internal and external issues? ???ALASKA AIRLINES: NAVIGATING CHANGE In the autumn of 2007, Alaska Airlines executives adjourned at the end of a long and stressful day in the midst of a multi-day strategic planning session. Most headed outside to relax, unwind and enjoy a bonfire on the shore of Semiahmoo Spit, outside the meeting venue in Blaine, a seaport town in northwest Washington state. Meanwhile, several members of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT