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. What was wrong with Mark's approach to analyzing his data, and which test should he have used.Group of answer choices

Question
Asked Oct 17, 2019
1 views
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. What was wrong with Mark's approach to analyzing his data, and which test should he have used.
Group of answer choices
check_circle

Expert Answer

Step 1

It is given that the average ratings are Corvet...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Math

Statistics

Advanced Topics in Statistics

Related Statistics Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: I lost my notes for solving this sample question for an upcoming exam. Some help reviewing would be ...

A: The total number of board of directors = 10.The officers need to be appointed = 3 (chief Executive o...

question_answer

Q: I need help answering parts (d) and (e)

A: (d) The probability of rolling a sum of 6 is 0.1389 and it is calculated below: From the given infor...

question_answer

Q: In Rolling Acres Housing Plan, 42% of the houses have a deck and a garage; 60% have a deck. Find the...

A: From the given information, the percentage of houses have a deck and a garage is 42% and the percent...

question_answer

Q: Use the TI-84 calculator to find the z-scores that bound the middle 80% of the area under the standa...

A: From the given information, normal distribution middle area is 80%.

question_answer

Q: 8.1.15 Suppose a simple random sample of size n 49 is obtained from a population with u 79 and a =14...

A: (a)From the given information, sample size is n = 49. From the central limit theorem if the sample s...

question_answer

Q: An investigator conducts a study to investigate whether there is a difference in mean PEF in childre...

A: Introduction:The 100 (1 – α) % confidence interval for the population mean, μ, for given sample stan...

question_answer

Q: It is asserted that 70% of the cars approaching an individual toll booth in New Jersey are equipped ...

A: Given:Sample size(n)=8Probabilty(P)=0.70Explanation:Let's x is random variable.The formula of binomi...

question_answer

Q: Data Table The table gives percentages for results of flipping seven coins. Complete parts (a) throu...

A: Given data

question_answer

Q: I lost my notes for solving this sample question for an upcoming exam. Some help reviewing would be ...

A: a) According to the provided information, passwords are required to have 3 letters followed by 2 dig...