a)applying chi square test:
Expected | Ei=row total*column total/grand total | Some HS | HS grad | some college | college grad | Total |
average | 30.00 | 30.00 | 30.00 | 60.00 | 150 | |
outstanding | 50.00 | 50.00 | 50.00 | 100.00 | 250 | |
exceptional | 20.00 | 20.00 | 20.00 | 40.00 | 100 | |
total | 100 | 100 | 100 | 200 | 500 | |
chi square χ2 | =(Oi-Ei)2/Ei | Some HS | HS grad | some college | college grad | Total |
average | 0.833 | 0.000 | 0.833 | 0.000 | 1.667 | |
outstanding | 0.000 | 0.000 | 0.500 | 0.250 | 0.750 | |
exceptional | 1.250 | 0.000 | 0.000 | 0.625 | 1.875 | |
total | 2.083 | 0.000 | 1.333 | 0.875 | 4.2917 |
test statistic X2 =4.29
p value 0.6373
b)
average | 30% |
outstanding | 50% |
exceptional | 20% |
new owners appear to be satisfied,,,,,,,,70% of owners rated their,,,,,,,,
A vehicle quality survey asked new owners a variety of questions about their recently purchased automobile. One questio...
A vehicle quality survey asked new owners a variety of questions about their recently purchased automobile. One question asked for the owner’s rating of the vehicle using categorical responses of average, outstanding, and exceptional. Another question asked for the owner’s education level with the categorical responses some high school, high school graduate, some college, and college graduate. Assume the sample data below are for owners who had recently purchased an automobile. A vehicle quality survey asked new owners a variety...
Observed College Grad HS Grad Some College Some HS Total A vehicle quality survey asked new owners a variety of questions about their recently purchased automobile. One question asked for the owner's rating of the vehicle using categorical responses of average, outstanding, and exceptional. Another question asked for the owner's education level with the categorical responses some high school, high school graduate, some college, and college graduate Using Chi-square test for independence if owners rating and her/his education are independent....
Observed College Grad HS Grad Some College Some HS Total A vehicle quality survey asked new owners a variety of questions about their recently purchased automobile. One question asked for the owner's rating of the vehicle using categorical responses of average, outstanding, and exceptional. Another question asked for the owner's education level with the categorical responses some high school, high school graduate, some college, and college graduate Using Chi-square test for independence if owners rating and her/his education are independent....
A vehicle quality survey asked new owners A and exceptional. Another question asked for the owner's education level with the cateporkcal resporses some high schood, high school gradsate, some college, and colege graduate. Assime the sanple 500 owners who had recently purchased an automobile. vehidle quality survey acked new owners a variety of questions about their recently purchased automabile.One question asked for the owner's rating of the vebide using categorical responies o aage, oustandng cats belom are for Quelity Rsting...
o rating of the vehicle using I responses some high school, high school graduate, some college, and college graduate. Assume the sample data below are for 500 owners who had recently purchased an automobile. Education Quality Rating Average Outstanding Some HS HS Grad Some College College Grad Compute the value of the x test statistie (to 2 decimals). b. Use the overall percentage of average, outstanding, and exceptional ratings to comment upon how new owners rate the quaity of their...
A quality survey asked recent customers of their experience at a local department store. One question asked for the customers rating on their service using categorical responses of average, outstanding, and exceptional. Another question asked for the applicant's education level with categorical responses of Some HS, HS Grad, Some College, and College Grad The sample data below are for 700 customers who recently visited the department store 8. Educatiorn College Grad HS Grad 35 70 45 Some College Some HS...
During the first 13 weeks of the television season, the Saturday evening 8:00 PM to 9:00 PM, audience proportions were recorded as ABC 30%, CBS 28%, NBC 23%, and independents 19%. A sample of 300 homes two weeks after a Saturday night schedule revision yielded the following viewing audience data: ABC 94 homes, CBS 65 homes, NBC 81 homes, and independents 60 homes. Test with a - .05 to determine whether the viewing audience proportions changed. Use Table 12.4. Round...
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