This topic contains a solution. Click here to go to the answer

Author Question: 307 diamonds were sampled and randomly sorted into three groups of diamonds. These diamonds were ... (Read 622 times)

theo

  • Hero Member
  • *****
  • Posts: 698
307 diamonds were sampled and randomly sorted into three groups of diamonds. These diamonds were randomly assigned to one of the three organizations, or groups (HRD, GIA, or IGI), that certify the appraisal of diamonds. A study was conducted to determine if the average size of diamonds reported by these three certification groups differ. A completely randomized design was used and the resulting ANOVA table is shown below.

One-Way AOV for CARAT by CERT
Source DF SS MS F P            
CERT 2 8.3265 4.16326 83.21 0.0000
Error 305 15.2604 0.05003
Total 307 23.5869

Give a practical conclusion for the test in the words of the problem. Use α = 0.10 to make your conclusion.
◦ There is sufficient evidence to indicate that the mean carat weight for the GIA group is lower than the other two groups.
◦ There is insufficient evidence to indicate that differences exist among the mean carat weights for the three certification groups.
◦ There is sufficient evidence to indicate that the mean carat weight for the HRD group equals the mean carat weight for the IGI group.
◦ There is sufficient evidence to indicate that differences exist among the mean carat weights for the three certification groups.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by theo on Feb 14, 2020

Benayers

  • Sr. Member
  • ****
  • Posts: 328
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 56% of students answer this correctly




 

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

For a complete list of videos, visit our video library