A vehicle quality survey asked new owners a variety of questionsabout their recently purchased automobile. One question asked forthe owner’s rating of the vehicle using categorical responses ofaverage, outstanding, and exceptional. Another question asked forthe owner’s education level with the categorical responses somehigh school, high school graduate, some college, and collegegraduate. Assume the sample data below are for ownerswho had recently purchased an automobile.
| Education |
| QualityRating | Some HS | HS Grad | Some College | College Grad |
|---|
| Average | 30 | 25 | 25 | 60 |
| Outstanding | 50 | 50 | 45 | 90 |
| Exceptional | 20 | 25 | 30 | 50 |
a. Use a level of significance and atest of independence to determine if a new owner's vehicle qualityrating is independent of the owner's education.
Compute the value of the test statistic (to 2decimals).
The -value is - Select your answer -between .01 and .025between.025 and .05between .05 and .10greater than .10less than .01Item2
What is your conclusion?
- Select your answer -Cannot concludeConcludeItem 3 that thequality rating is not independent of the education of theowner.
b. Use the overall percentage of average,outstanding, and exceptional ratings to comment upon how new ownersrate the quality of their recently purchased automobiles.
| Average | |
| Outstanding | |
| Exceptional | |
New owners - Select your answer -do not appearappearItem 7 to besatisfied with the recent purchase of theirautomobile. of owners rated their automobile asOutstanding or Exceptional.
